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| − | [[Category:Appendix]] | + | * '''4K lines''': EMI/EMC influence of the 4K cooler mechanical motion on the bolometer readout electronics. |
| − | [[Category:PSOBook]] | + | * '''calibration''' [HFI meaning]: For a single detector, the absolute calibration is gain factor between the measured signal (watts absorbed by the detector) and the sky signal (in astrophysical units); can vary with time. For a set of detectors, the relative calibration is the difference in the calibration between detector pairs. The latter can be measured very accurately from the observations of the same source by different detectors, and is only slightly affected by the differences in the detector spectral responses, which are similar; the former requires observations of sources with well modeled spectral energy distributions or well known spectra, and requires that the detector's spectral bandpass also be well known. |
| − | | + | * '''calibration''': [LFI meaning]: absolute calibration refers to the 0th order calibration for each channel, 1 single number, while the relative calibration refers to the component of the calibration that varies pointing period by pointing period. |
| − | This page gives definition of some words commonly used in this Explanatory Supplement.
| + | * '''detector set''' [HFI meaning]: a detector set (aka detset aka quad) is a combinaison of two pairs of Polarization Sensitive Bolometers pairs at the proper orientations. The lists of detsets is given in [[Frequency_Maps#Detector-set_maps | here]]. |
| − | | + | * '''DMC''' : Data Management Component, the databases used at the HFI and LFI DPCs |
| − | * '''focal plane geometry''' [HFI meaning] | + | * '''effective beam''' [HFI meaning]: the effective beam at the map level is the overall angular response to the sky in a map pixel, which results from the combined effect of the instrumental response, the scanning strategy and the data processing. |
| − | * '''HPR''' [HFI meaning]: HEALPix Rings are introduced to avoid any additional binning of the data. We choose a sky pixelization as a basis for this ring making (HEALPix, Górski et al. 2005). HPR are therefore partial sky maps produced via a projection onto the sky of each single pointing period separately. | + | * '''far sidelobe''' [HFI meaning]: the response to the sky of a detector more than 5 degrees from the beam centroid. |
| − | * '''IMO''' [HFI meaning]: the HFI IMO is a central repository containing the models (or a link to them) and sets of fixed parameters used in these models describing for example how photons are gathered and transformed into data. IMO is oriented toward the data reduction and data processing. IMO is also used to monitor the instrument health. IMO represents at any time the official knowledge of the instrument response. It is intended to represent its best current knowledge agreed on by the project and applicable to the data processing. IMO does not represent the knowledge of the instrument. It is a knowledge of its response, (e.g. how photons are gathered and transformed into data). It is a simplified fraction of this knowledge directly useful to reduce the data. The IMO is restricted to the sole parameters used in the DPC. IMO does not contain timelines, nor maps, although it can provide links to calibration timelines (e.g. gain evolution) and calibration maps (e.g. beam maps). Models do not need to be unique (not a single model for a single process). Depending on the purpose for which they are used, they can be more or less sophisticated. (e.g. bolometer models, beam representations, very simplified for first assessment of pointing parameters, ...). IMO does not choose between them : it contains the parameters for each of them at the same time. See HFI RIMO. | + | * '''half ring difference''' : difference between the map built using the first half of each pointing period (typically 20 minutes of contiguous data) and the one built with the second half. This difference effectively removes the sky signal and most of the correlated noise, leaving only the noise components that have time scales of < ~ 20 min. |
| − | * '''mission''' [HFI meaning] | + | * '''HEALPix''': ([http://healpix.sourceforge.net Hierarchical Equal Area isoLatitude Pixelation of a sphere], {{BibCite|gorski2005}}) pixelation used to produce Planck sky maps (and HFI HPR). |
| − | * '''optical beam''' [HFI meaning] | + | * '''HPR''' [HFI meaning]: HEALPix Rings are introduced to avoid any additional binning of the data. We choose a sky pixelization as a basis for this ring making. HPR are therefore partial sky maps produced via a projection onto the sky of each single pointing period separately. |
| | + | * '''IMO''' [HFI meaning]: the HFI Instrument MOdel is a central repository containing the models (or a link to them) and sets of fixed parameters used in these models describing for example how photons are gathered and transformed into data. IMO is oriented toward the data reduction and data processing. IMO is also used to monitor the instrument health. IMO represents at any time the official knowledge of the instrument response. It is intended to represent its best current knowledge agreed on by the project and applicable to the data processing. IMO does not represent the knowledge of the instrument. It is a knowledge of its response, (e.g. how photons are gathered and transformed into data). It is a simplified fraction of this knowledge directly useful to reduce the data. The IMO is restricted to the sole parameters used in the DPC. IMO does not contain timelines, nor maps, although it can provide links to calibration timelines (e.g. gain evolution) and calibration maps (e.g. beam maps). Models do not need to be unique (not a single model for a single process). Depending on the purpose for which they are used, they can be more or less sophisticated. (e.g. bolometer models, beam representations, very simplified for first assessment of pointing parameters, ...). IMO does not choose between them : it contains the parameters for each of them at the same time. See HFI RIMO. |
| | + | * '''jump''' : sudden change of the baseline level inside a ring |
| | + | * '''main beam''' [HFI meaning] Response to the sky within 23 arcminutes of the centroid of response. |
| | + | * '''near sidelobe''' [HFI meaning] Response to the sky between 23 arcminutes and 5 degrees from the main beam centroid. |
| | + | * '''OD''' : Operation Day definition is geometric visibility driven as it runs from the start of a DTCP (satellite Acquisition Of Signal) to the start of the next DTCP. Given the different ground stations and spacecraft will takes which station for how long, the OD duration varies but it is basically once a day. |
| | + | * '''optical beam''' [HFI meaning] The response to the sky due to optics alone. |
| | * '''PBR''' [HFI meaning]: Phase Bin Rings provide a compressed and higher signal-to-noise ratio rendition of the original Time Order Data | | * '''PBR''' [HFI meaning]: Phase Bin Rings provide a compressed and higher signal-to-noise ratio rendition of the original Time Order Data |
| | * '''polarization leakage''' [HFI meaning]: in general, systematic effects mix the I,Q,U signals. Given the amplitudes of the sky signals, leakage from temperature to polarisation can be dramatic for polarisation analysis. | | * '''polarization leakage''' [HFI meaning]: in general, systematic effects mix the I,Q,U signals. Given the amplitudes of the sky signals, leakage from temperature to polarisation can be dramatic for polarisation analysis. |
| − | * '''ring''' [HFI meaning]: at the HFI DPC level the ring is the time intervalle between two First Thurster Firings as defined in {{ICD|AHF|link=AHF description document}}. It thus starts with a satellite slew and thus an unstable pointing period and continue with a satellite dwell and thus stable pointing period. | + | * '''ring''' [HFI meaning]: at the HFI DPC level the ring is the time intervalle between two First Thurster Firings as defined in {{ICD|AHF|link=AHF description document}}. It thus starts with a satellite slew and thus an unstable pointing period and continue with a satellite dwell and thus stable pointing period. |
| | * '''RIMO''' [HFI meaning]: The RIMO, or Reduced Instrument Model is a FITS file containing selected instrument characteristics that are needed by users who work with the released data products. | | * '''RIMO''' [HFI meaning]: The RIMO, or Reduced Instrument Model is a FITS file containing selected instrument characteristics that are needed by users who work with the released data products. |
| | * '''sample''' [HFI meaning] | | * '''sample''' [HFI meaning] |
| | * '''scanning beam''' [HFI meaning]: the scanning is defined as the beam measured from the response to a point source of the full optical and electronic system, after the filtering. | | * '''scanning beam''' [HFI meaning]: the scanning is defined as the beam measured from the response to a point source of the full optical and electronic system, after the filtering. |
| | + | * '''scanning beam''' [LFI meaning]: the actual beam which couples the optics of the instrument with the scanning movement of the satellite (beam smearing). It can be measured from planet observations. |
| | + | * '''SOVT ''' : System Operation and Validation Test |
| | + | * '''spectral response''' (or bandpass): steady state response of a detector system (i.e., detector and its electronics + horn + filter) as a function of frequency. It does not consider the temporal response and associated transfer function. |
| | * '''survey''' [HFI meaning]: sky surveys (aka Scan #)are defined in terms of the direction of the satellite's spin axis. Survey periods are given [[Frequency_Maps#Single_survey_maps | here]]. | | * '''survey''' [HFI meaning]: sky surveys (aka Scan #)are defined in terms of the direction of the satellite's spin axis. Survey periods are given [[Frequency_Maps#Single_survey_maps | here]]. |
| | + | * '''TOD ''' [HFI meaning]: Time-Ordered Data |
| | + | * '''TOD ''' [LFI meaning]: Time-Ordered Data, refers to calibrated data |
| | + | * '''TOI''' [HFI meaning]: Time Ordered Information |
| | + | * '''TOI''' [LFI meaning]: Time Ordered Information, refers to uncalibrated data |
| | + | * '''warm units''' : JFET, Bellow, PAU et REU |
| | | | |
| − | * '''4KCDE''' : 4K Cooler Drive Electronics
| + | = References = |
| − | * '''AAD''' : Attitude Anomaly Detector
| + | <References /> |
| − | * '''AAU''' : ACMS Auxiliary Unit
| + | |
| − | * '''ABCL''' : As Built Configuration List
| + | [[Category:Appendix|001]] |
| − | * '''AC''' : Alternating Current
| + | [[Category:PSOBook]] |
| − | * '''ACC''' : ACMS Control Computer
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| − | * '''ACK''' : Acknowledgement
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| − | * '''ACMS''' : Attitude Control & Measurement Subsystem (AOCS)
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| − | * '''AD''' : Applicable Document
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| − | * '''ADD''' : Architecture Design Document
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| − | * '''AHF''' : Attitude History File
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| − | * '''AID''' : Activity IDentifier
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| − | * '''AIT''' : Assembly Integration &Test (:before delivery)
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| − | * '''AIV''' : Assembly Integration &Verification (:after delivery)
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| − | * '''ALM''' : (DMC group/object)
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| − | * '''ALOS''' : Around Line of Sight
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| − | * '''AME''' : Attitude Measurement Error
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| − | * '''AO''' : Announcement of Opportunity
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| − | * '''AOCS''' : Attitude and Orbit Control System (dispositif de reconstruction de la direction d'observation)
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| − | * '''AOS''' : Acquisition Of Signal
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| − | * '''APC''' : Laboratoire d'Astroparticule et Cosmologie (Paris)
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| − | * '''APE''' : Absolut Pointing Error
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| − | * '''APF ''' : Attitude Parameter File
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| − | * '''API''' : Application Programming Interface
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| − | * '''APID''' : Application Program Identifier
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| − | * '''APPL ''' : Augmented Preprogrammed Pointing List
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| − | * '''ARE''' : Absolut Rate Error
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| − | * '''ASAP ''' : As Soon As Possible
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| − | * '''ASCII ''' : American Standard Code of Information Interchange
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| − | * '''ASF''' : ASF Attitude Snapshot File
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| − | * '''ASI''' : Italian Space Agency
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| − | * '''ASPI''' : .
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| − | * '''ASW''' : Application Software
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| − | * '''AT''' : Acceptance Test
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| − | * '''ATP''' : Acceptance Test Plan
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| − | * '''AVM''' : Avionics Model
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| − | * '''BBM''' : Breadboard Model (of the data processing pipeline)
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| − | * '''BOL''' : Begin Of Life
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| − | * '''BSS ''' : Baseline Scanning Strategy
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| − | * '''BSW''' : Basic SoftWare
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| − | * '''BSW''' : Boot SoftWare
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| − | * '''CC''' : Compressed Channel
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| − | * '''CC''' : Configuration Control
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| − | * '''CCALI ''' : a larger computer at the CCIN2P3
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| − | * '''CCAS''' : Control, Commanding and Acquisition System
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| − | * '''CCB''' : Configuration Control Board
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| − | * '''CCIN2P3''' : IN2P3 Computing Center (Lyon)
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| − | * '''CCS''' : Central Check-Out System = HPCCS = SCOS
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| − | * '''CCS''' : Configuration Control System
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| − | * '''CCSDS''' : Consultative Committee for Space Data Systems
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| − | * '''CDC''' : Calibration Device Control (process)
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| − | * '''CDMS''' : Command and Data Management System
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| − | * '''CDMU''' : Command and Data Management Unit
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| − | * '''CEA''' : Commissariat à l'Energie Atomique
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| − | * '''cernox''' : see HCT
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| − | * '''CESR''' : Centre d'Etudes Spatiales des Rayonnements (Toulouse)
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| − | * '''CIDL''' : Configuration Item Data List
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| − | * '''CIT''' : California Institute of Technology
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| − | * '''CITA''' : Canadian Institute for Theoretical Physics (Toronto)
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| − | * '''CL''' : (DMC group/object)
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| − | * '''CLTU''' : Command Link Transmission Unit
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| − | * '''CMB''' : Cosmic Microwave background
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| − | * '''CMP''' : Configuration Management Plan
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| − | * '''CMT''' : Configuration Management Tool
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| − | * '''CNES''' : Centre National d'Etudes Spatiales (Toulouse)
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| − | * '''CO''' : Calibration Observation
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| − | * '''COBRAS ''' : COsmic Background Anisotropy Satellite
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| − | * '''COEG''' : Cryo Ops Engineering Group
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| − | * '''COI''' : (DMC group/object)
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| − | * '''COM''' : Commissioning Operations Manager (:MK)
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| − | * '''CoP''' : Commissioning Phase
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| − | * '''COTS''' : Commercial Off The Shelf [Software]
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| − | * '''Co-I''' : Co-Investigator
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| − | * '''CPAC''' : Cambridge Planck Analysis Centre
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| − | * '''CPDU''' : Command Pulse Distribution Unit
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| − | * '''CPU ''' : Central Processing Unit
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| − | * '''CPV''' : Calibration and Performance Verification
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| − | * '''CQM''' : Cryogenic Qualification Model.
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| − | * '''CR''' : Change Request
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| − | * '''CR''' : Cosmic Ray
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| − | * '''CRAT''' : Commanding Request Acceptance Table
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| − | * '''CRC''' : Cyclic Redundancy Check
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| − | * '''CReMA''' : Consolidated Report on Mission Analysis
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| − | * '''CRP''' : Contingency Recovery Procedure
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| − | * '''CRS''' : Coarse Rate Sensor
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| − | * '''CRTBT''' : Centre de Recherche sur les Très Basses Températures (Grenoble)
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| − | * '''CS''' : Compression Slice
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| − | * '''CSA''' : Canadian Space Agency
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| − | * '''CSL''' : Centre Spatial de Liège (Belgique)
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| − | * '''CSSW''' : Common Service SoftWare
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| − | * '''CT ''' : Core Team
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| − | * '''CT''' : Compatibility Test
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| − | * '''CTP''' : A working group that studies map making and power spectra analysis
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| − | * '''CTR''' : Central Time Reference
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| − | * '''CTT''' : Compatibility Test Trailer
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| − | * '''CTWG''' : Core Team Working Group
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| − | * '''CUC''' : CCSDS Unsegmented Time Code
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| − | * '''CVS''' : Concurrent Versioning System
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| − | * '''CWG''' : Commonality Working Group
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| − | * '''DAE''' : LFI Data Acquisition Electronics
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| − | * '''DB ''' : Database
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| − | * '''DCA''' : Dedicated Control Area
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| − | * '''DCR''' : Dedicated Control Room
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| − | * '''DCE''' : Dilution Cooler Electronics
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| − | * '''DD''' : Planck Ground Segment Design Document
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| − | * '''DDL''' : Data Definition Layer
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| − | * '''DDS''' : MOC's Data Distribution System
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| − | * '''detector set''' [HFI meaning]: a detector set (aka detset aka quad) is a combinaison of two pairs of Polarization Sensitive Bolometers pairs at the proper orientations. The lists of detsets is given in [[Frequency_Maps#Detector-set_maps | here]].
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| − | * '''DFE''' : Data Front-End Equipment
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| − | * '''DFT''' : Data Flow Test
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| − | * '''DM''' : (DPC Pipeline) Development Model
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| − | * '''DMC''' : Data Management Component [Component of of IDIS]
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| − | * '''DMCI''' : Data Management Component Interfaces
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| − | * '''DMS''' : Document Managing System [Component of of IDIS]
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| − | * '''DPC''' : Data Processing Center
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| − | * '''DPCM''' : Data Processing Centre Manager
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| − | * '''DPCT''' : Data Processing Centre Team
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| − | * '''DPCTM''' : Data Processing Centre Technical Manager
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| − | * '''DPU''' : Data Processing Unit
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| − | * '''DQR ''' : Daily Quality Report
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| − | * '''DR ''' : Design Review
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| − | * '''DRB''' :
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| − | * '''DSA''' : Deep Space Antenna
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| − | * '''DSN''' : Deep Space Network
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| − | * '''DSP''' : Digital Signal Processing
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| − | * '''DSRI''' : Danish Space Research Institute
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| − | * '''DTCP''' : Daily Tele-Communication Period
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| − | * '''E2E''' : End to end (tests)
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| − | * '''ECR''' : Engineering Change Request
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| − | * '''ED ''' : Event Designator
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| − | * '''effective beam''' [HFI meaning]: the effective beam at the map level is the overall angular response to the sky in a map pixel, which results from the combined effect of the instrumental response, the scanning strategy and the data processing.
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| − | * '''EGSE''' : Electrical Ground Support Equipment
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| − | * '''EID''' : Event Identifier
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| − | * '''EM''' : Engineering Model
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| − | * '''EMC''' : Electromagnetic Couplings
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| − | * '''EMI''' : Electromagnetic Interferences
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| − | * '''EOC''' : End Of Commissioning
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| − | * '''EOL''' : End Of Life
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| − | * '''EP''' : Entrance Pupil
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| − | * '''EPC''' : Electric Power Conditioner
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| − | * '''EPOS''' : Enhanced Preferred Observation
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| − | * '''EPS''' : Electrical Power Subsystem
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| − | * '''ERCSC''' : Early Release Compact Source Catalog
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| − | * '''ESA''' : European Space Agency
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| − | * '''ESAC''' : European Space Astronomy Center (Villafranca, Spain)
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| − | * '''ESAF''' : ESTRACK Station Allocation File (: DTCP schedule)
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| − | * '''ESOC''' : European Space Operations Centre (Darmstadt)
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| − | * '''ESTEC''' : European Space TEchnology and Research Centre
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| − | * '''EVL''' : Event Logger
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| − | * '''FAR''' : Flight Acceptance Review
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| − | * '''FCP''' : Flight Control Procedure
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| − | * '''FCT ''' : Flight Control Team
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| − | * '''FD ''' : Flight Dynamics (Supports MOC activities)
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| − | * '''FDD ''' : Flight Dynamics Division (at MOC/ESOC)
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| − | * '''FDIR''' : Failure Detection, Isolation and Recovery functions
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| − | * '''FDS ''' : Flight Dynamics System
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| − | * '''FedL''' : access manager and federating system : composant de IDIS
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| − | * '''FFT''' : Fast Fourier Transform
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| − | * '''FID''' : Function IDentifier
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| − | * '''FINDAS''' : FIRST Integrated Network And Data Archive System
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| − | * '''FIRST ''' : Far InfraRed and Sub-millimetre Telescope
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| − | * '''FITS ''' : Flexible Image Transfer Specification
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| − | * '''FL''' : Federation Layer
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| − | * '''FLS''' : First Light Survey
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| − | * '''FM''' : Flight Model
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| − | * '''FM-1''' : Flight Model version 1 (DPC Pipeline)
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| − | * '''FOG''' : Fiber Optic Gyroscope
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| − | * '''FOI''' : (DMC group/object)
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| − | * '''FOP''' : Flight Operations Plan
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| − | * '''FOV''' : Field-Of-View
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| − | * '''FP''' : Focal Plane
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| − | * '''FP''' : Formal Parameter
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| − | * '''FPA''' : Focal Plane Assembly
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| − | * '''FPDA''' : Focal Plane Detection Assembly
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| − | * '''FPG ''' : Focal Plane Geometry
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| − | * '''FPGA''' : Field Programmable Gate Array : processeur du REU
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| − | * '''FPU''' : Focal Plane Unit
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| − | * '''FR''' : Frame Relay [Services]
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| − | * '''FS''' : Flight Spares
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| − | * '''FTE ''' : Full-Time Equivalent
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| − | * '''FTP''' : File Transfer Protocol
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| − | * '''FTS ''' : File Transfer System
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| − | * '''FTS''' : Fourier Transform Spectrometer
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| − | * '''FWHM ''' : Full-Width-at-Half-Maximum
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| − | * '''G/S ''' : Ground station
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| − | * '''GPH ###''' : Number of a WorkPackage for the "Ground Planck HFI"
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| − | * '''GS ''' : Ground Segment
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| − | * '''GSIT ''' : Ground Segment Integration Test
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| − | * '''GSM''' : Ground Segment Manager
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| − | * '''GSPM''' : Ground Segment Projet Manager
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| − | * '''GS-RR''' : Ground Segment Readiness Review
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| − | * '''GSSTP''' : Ground Segment System Test Plan
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| − | * '''GUI''' : Graphical User Interface
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| − | * '''H/K''' : House-Keeping data
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| − | * '''H/W''' : Hardware
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| − | * '''HCM''' : Angular momentum Control Mode
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| − | * '''HCT''' : Housekeeping Cryogenic Temperature : Commonly called “Cernox” by HFI
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| − | * '''HEMT''' : High Electron Mobility Transistor
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| − | * '''HFI''' : High Frequency Instrument
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| − | * '''HGA''' : High Gain Antenna
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| − | * '''HIFI''' : Heterodyne Instrument for Herschel
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| − | * '''HL''' : High Limit
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| − | * '''HOC''' : Planck HFI Operations Centre (Orsay)
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| − | * '''HPCCS''' : Herschel/Planck CCS = SCOS
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| − | * '''HPFTS''' : Herschel/Planck File Transfer System
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| − | * '''HPMCS''' : Herschel/Planck Mission Control System
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| − | * '''HP-PSICD''' : Herschel/Planck Packet Structure Interface Control Document
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| − | * '''HPR''' : Hardware Problem Report
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| − | * '''HPSDB''' : Herschel/Planck Spacecraft DataBase
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| − | * '''HSC''' : Herschel Science Centre
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| − | * '''HSK''' : House-Keeping data
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| − | * '''HSL''' : High Speed Link
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| − | * '''HTML ''' : Hyper Text Mark-up Language
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| − | * '''HTTP ''' : Hyper Text Transport Protocol
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| − | * '''HWCI''' : Hardware Configuration Item
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| − | * '''I&T ''' : Integration and Testing
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| − | * '''IA''' : Interactive Analysis
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| − | * '''IAP''' : Institut d'Astrophysique de Paris (Paris)
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| − | * '''IAS''' : Institut d'Astrophysique Spatiale (Orsay)
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| − | * '''IC''' : Imperial College (London)
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| − | * '''ICD''' : Interface Control Document
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| − | * '''IC-DB ''' : Instrument Control Database
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| − | * '''ICF''' : Intrinsic Correlation Function
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| − | * '''ICP''' : Instrument Command Parameter
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| − | * '''ICSs''' : Instrument Command Sequences
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| − | * '''ICT''' :
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| − | * '''ICWG''' : Instrument Coordination Working Group
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| − | * '''ID''' : Identification, Identifier
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| − | * '''IDIS''' : Integrated Data and Information System
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| − | * '''IDIS-DT''' : IDIS Development Team
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| − | * '''IDIS-MT''' : IDIS Management Team
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| − | * '''IDL ''' : Interactive Display Language
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| − | * '''IDT''' : Instrument Development Team
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| − | * '''I-EGSE''' : Instrument Electric Ground Support Equipment
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| − | * '''IFAR''' : Instrument Flight Acceptance Review
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| − | * '''IID-A''' : Instrument Interface Document, Part A
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| − | * '''IID-B''' : Instrument Interface Document, Part B
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| − | * '''ILT''' : Instrument Level Test
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| − | * '''IMG''' : (DMC group/object)
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| − | * '''IMO''' : Instrument MOdel
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| − | * '''IMOG ''' : Instrument Model Group
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| − | * '''IN2P3''' : Institut National de Physique Nuclaire et de Physique des Particules
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| − | * '''IoA''' : Institute of Astronomy (University of Cambridge)
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| − | * '''IOCR''' : In Orbit Commissioning Review
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| − | * '''IOCTA''' : In-Orbit Calibration and Test Activities
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| − | * '''IOCTA-DD''' : In-Orbit Calibration and Test Activities Detailled Document
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| − | * '''IOCTRD''' : In-Orbit Calibration and Test Requirements Document
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| − | * '''IOM''' : Instrument Operations Manager
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| − | * '''IOT''' : Instrument Operation Team
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| − | * '''IP''' : Internet Protocol
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| − | * '''IPAC''' : Infrared Processing and Analysis Centre (Nasa, Caltech, USA)
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| − | * '''IPR''' : Interface Pc Readout
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| − | * '''IRAS''' : Infrared Astronomical Satellite
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| − | * '''IRD''' : Planck Ground Segment Interface Requirement Document
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| − | * '''IRT''' : Inertial Reference Time
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| − | * '''IS''' : Instrument Scientist
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| − | * '''ISDC''' : Integral Science Data Center
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| − | * '''ISDN''' : Integrated Services Data Network
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| − | * '''ISN''' : Institut des Sciences Nucléaires (Grenoble)
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| − | * '''ISO''' : International Standards Organisation
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| − | * '''IST''' : Instrument System Test
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| − | * '''IT''' : Integration Test
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| − | * '''ITSG''' : Integration and Testing Steering Group
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| − | * '''ITSSR''' : Integration and Test Schedule and Status Report
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| − | * '''IW@HOC''' : Instrument Workstation located at HOC
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| − | * '''IW@MOC''' : Instrument Workstation located at MOC
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| − | * '''IW''' : Instrument Work Station
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| − | * '''JFET''' : Junction Field Elect Transistor
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| − | * '''JPL''' : Jet Propulsion Laboratory
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| − | * '''JS''' : Jitter Strip
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| − | * '''JSA''' : Jitter Strip Average
| |
| − | * '''KBPS''' : Kilo Bit Per Second
| |
| − | * '''KICC''' : Kavli Institute for Cosmology, Cambridge
| |
| − | * '''KST''' : a scientific data visualization software package
| |
| − | * '''L-#''' : # months before launch
| |
| − | * '''L1''' : Data Acquisition
| |
| − | * '''L2 ''' : Second Earth-Sun Lagrange point
| |
| − | * '''L2''' : Data Processing
| |
| − | * '''L3''' : Component Separation
| |
| − | * '''L4''' : Data Release
| |
| − | * '''LAL''' : Laboratoire de l'Accélérateur Linéaire (Orsay)
| |
| − | * '''LAN''' : Local Area Network
| |
| − | * '''LAOG''' : Laboratoire d'Astrophysique de Grenoble (Grenoble)
| |
| − | * '''LEOP''' : Launch & Early Orbit Phase
| |
| − | * '''LevelS''' : Simulation Level
| |
| − | * '''LERMA''' : Laboratoire d'Etude du Rayonnement de la Matière en Astrophysique (Observatoire de Paris, Observatoire de Meudon, Ecole Normale Supérieure, UPMC-Ivry, Université de Cergy-Pontoise)
| |
| − | * '''LFI''' : (Planck) Low Frequency Instrument
| |
| − | * '''LGA''' : Low Gain Antenna
| |
| − | * '''LIFE ''' : LFI Integrated Performance Evaluator
| |
| − | * '''LL''' : Low Limit
| |
| − | * '''LM''' : Local Manager
| |
| − | * '''LOBT''' : Local On Board Time
| |
| − | * '''LOS''' : Line Of Sight
| |
| − | * '''LOS''' : Loss Of Signal
| |
| − | * '''LPAC''' : London Planck Analysis Centre (Imperial College, Cardiff University, University of Sussex, Univesity of Edimburg, University of Oxford)
| |
| − | * '''LPCC''' : Laboratoire de Physique Corpusculaire et Cosmologie
| |
| − | * '''LPSC''' : LPSC Laboratoire de Physique Subatomique et de Cosmologie (Grenoble)
| |
| − | * '''LS''' : Simulations
| |
| − | * '''LSB''' : Least Significant Bit
| |
| − | * '''LSL''' : Low Speed Link
| |
| − | * '''LVHX''' : Sorption Cooler Liquid Vapor Heat Exchanger
| |
| − | * '''MAP''' : Microwave Anisotropy Probe, or map (DMC group/object)
| |
| − | * '''MB''' : (Cosmic) Microwave Background
| |
| − | * '''MC''' : Monte Carlo
| |
| − | * '''MCR''' : Master Control Room
| |
| − | * '''MCS''' : Mission Control System
| |
| − | * '''ME/DPU''' : Main Electronics / Data Processing Unit
| |
| − | * '''MEA''' : Main Error Amplifier ''' : function of the Main Error Amplifier (MEA) is to manage the available energy sources, in order to guarantee a permanent regulated bus
| |
| − | * '''MEM''' : Maximum Entropy Method
| |
| − | * '''MGA''' : Medium Gain Antenna
| |
| − | * '''MGSE''' : Mechanic Ground Support Equipment
| |
| − | * '''MIB''' : Mission Information base
| |
| − | * '''MID''' : Memory Identifier
| |
| − | * '''MINT''' : Monitoring Interval
| |
| − | * '''ML ''' : Maximum Likelihood
| |
| − | * '''MLI''' : Multi Layer Insulation
| |
| − | * '''MOC''' : [ESA's] Mission Operation Center [Darmstadt, Germany]
| |
| − | * '''MOD ''' : Mission Operations Department
| |
| − | * '''MOM''' : Mission Operations Manager
| |
| − | * '''MON''' : Monitoring Display
| |
| − | * '''MOS''' : Margin Of Safety
| |
| − | * '''MPA''' : Max Planck fur Astrophysics [Garching, Germany]
| |
| − | * '''MPAC''' : Munich Planck Analysis Center
| |
| − | * '''MPI''' : Message Passing Interface (see '''%color=#0099ff%[[MPI specifics interface|HFI-DMC Documentation]]%%''')
| |
| − | * '''MPS''' : Mission Planning System
| |
| − | * '''MRA''' : MPI Request Aggregator (see '''%color=#0099ff%[[http://wiki.planck.fr/index.php/Planck/SchedulingModes#MRA|HFI-DMC Documentation]]%%''')
| |
| − | * '''MRB''' : Material Review Board
| |
| − | * '''MRT''' : Mission Readiness Test
| |
| − | * '''MSB''' : Most Significant Bit
| |
| − | * '''MSSW''' : Mission Specific Software
| |
| − | * '''MSTK''' : Manual Stack
| |
| − | * '''MTL''' : Mission Time Line
| |
| − | * '''MVL''' : Monitored Variable List (Station antenna angles)
| |
| − | * '''MVR''' : ManoeuVRe
| |
| − | * '''N/A''' : Not Applicable
| |
| − | * '''nan''' : Not A Number
| |
| − | * '''NASA''' : (US) National Aeronautics and Space Administration
| |
| − | * '''NCD''' : Network Configuration Document
| |
| − | * '''NCR''' : Non Conformance Report
| |
| − | * '''NCTRS''' : Network Control & Telemetry
| |
| − | * '''NDIU''' : Network Data Interface Unit
| |
| − | * '''NET ''' : Noise Equivalent Temperature
| |
| − | * '''NGP ''' : Nearest Grid Point
| |
| − | * '''NGP ''' : North Galactic Pole
| |
| − | * '''NRB''' : Non-conformance Review Board
| |
| − | * '''NRT''' : Near Real Time
| |
| − | * '''OAT''' : LFI DPC's Observatorio Astronomico de Trieste [Trieste, Italy]
| |
| − | * '''OBC''' : On Board Clock
| |
| − | * '''OBCP''' : On-Board Control Procedure
| |
| − | * '''OBDB ''' : On-Board DataBase
| |
| − | * '''OBDH''' : On Board Data Handling
| |
| − | * '''OBSM''' : Onboard Software Maintenance
| |
| − | * '''OBSMS''' : OBSM System
| |
| − | * '''OBSW''' : On Board Software
| |
| − | * '''OBT ''' : On-Board Time
| |
| − | * '''OCF''' : Operational Control Field
| |
| − | * '''OCM''' : Orbital Control Mode
| |
| − | * '''OD''' : Operational Day
| |
| − | * '''ODB ''' : Operational DataBase
| |
| − | * '''OGS''' : Operational Ground Segment
| |
| − | * '''OGSE''' : Optics Ground Support Equipment
| |
| − | * '''OIRD''' : Operations Interface Requirements Document
| |
| − | * '''OM ''' : Operations Model
| |
| − | * '''OM''' : Operations Manager
| |
| − | * '''OOL''' : Out Of Limit
| |
| − | * '''OPSLAN''' : Operational LAN
| |
| − | * '''OPSNET''' : Operational Network
| |
| − | * '''OSA''' : Orbit Size Angle (= Sun-Spacecraft-Earth angle) max= 15°
| |
| − | * '''P/L''' : Payload : charge utile
| |
| − | * '''PA''' : Product Assurance
| |
| − | * '''PACS''' : Photoconductor Array Camera and Spectrometer (Herschel)
| |
| − | * '''PAU''' : Pre_Amplification Unit
| |
| − | * '''PB''' : Play Back
| |
| − | * '''PBR''' : Phase-Binned Ring (DMC group/object)
| |
| − | * '''PCC''' : Laboratoire de Physique Corspusculaire et Cosmologie du Collège de France (devenu APC)
| |
| − | * '''PCS''' : Power Control Subsystem
| |
| − | * '''PCDU''' : Power Conditioning and Distribution Unit
| |
| − | * '''PDE''' : Pointing Drift Error
| |
| − | * '''PDF''' : Portable Document Format (Adobe Acrobat)
| |
| − | * '''PEC''' : Packet Error Control
| |
| − | * '''PFDS ''' : Planck Flight Dynamics System
| |
| − | * '''PFM''' : Proto-Flight Model
| |
| − | * '''PFOP''' : Planck Flight Operations Plan
| |
| − | * '''PGSAG''' : Planck Ground Segment Advisory Group
| |
| − | * '''PGSE''' : Pneumatic Ground Support Equipment
| |
| − | * '''PGSSG ''' : Planck Ground Segment Steering Group
| |
| − | * '''PGSSG''' : Planck Ground Segment System Engineering Group
| |
| − | * '''PHI''' : (DMC group/object)
| |
| − | * '''PI''' : Principal Investigator
| |
| − | * '''PID''' : Parameter Identifier
| |
| − | * '''PIOlib''' : Planck Input/Output library
| |
| − | * '''PIRD''' : Planck Interface Requirements Document
| |
| − | * '''PISA''' : Planck Internal Scientific Archive
| |
| − | * '''PISA''' : Principal Investigator Support Area [MOC]
| |
| − | * '''PLA ''' : Planck Legacy Archive
| |
| − | * '''PLM''' : Payload Module
| |
| − | * '''PM''' : Project Manager
| |
| − | * '''POD''' : Planning and Observation Data [File]
| |
| − | * '''POI''' : Phase-Ordered Information (DMC group/object)
| |
| − | * '''POS''' : Preferred Observation Sequence
| |
| − | * '''POSANG ''' : Position Angle
| |
| − | * '''POSDAC''' : Paris Orsay Saclay Data Analysis Center [France]
| |
| − | * '''PPARC''' : Particle Physics and Astronomy Research Council (UK)
| |
| − | * '''PPL ''' : Pre-programmed Pointing List
| |
| − | * '''PPL''' : Planned Pointing List
| |
| − | * '''PPL''' : Preference Part List
| |
| − | * '''PPLM''' : Planck Payload Module
| |
| − | * '''PR''' : Public Relations
| |
| − | * '''PRE''' : Pointing Reproductibility Error
| |
| − | * '''ProC''' : PROcess Coordinator [Component of IDIS]
| |
| − | * '''PROM''' : Programmable Read Only Memory
| |
| − | * '''PS ''' : Power Spectrum
| |
| − | * '''PS''' : Project Scientist
| |
| − | * '''PSB''' : Polarization Sensitive Bolometer
| |
| − | * '''PSF ''' : Planning Skeleton File
| |
| − | * '''PSF''' : Point-Spread-Function
| |
| − | * '''PS-ICD''' : Packet Structure ICD
| |
| − | * '''PSM ''' : Planck Sky Model
| |
| − | * '''PSO''' : Planck Science Office
| |
| − | * '''PSR''' : Project Support Room
| |
| − | * '''PSS''' : Portable Satellite Simulator
| |
| − | * '''PSS''' : Procedures, Specifications and Standards
| |
| − | * '''PST''' : Polling Sequence Table
| |
| − | * '''PSTN''' : Public Switched Telephone Network
| |
| − | * '''PSU''' : Power Supply Unit
| |
| − | * '''PTG''' : PoinTinG object (DMC group/object containing combined pointing info)
| |
| − | * '''PUS''' : Packet Utilisation Standard
| |
| − | * '''PV''' : Performance Verification
| |
| − | * '''QA''' : Quality Assurance
| |
| − | * '''QLA''' : Quick Look Analysis
| |
| − | * '''QM''' : Qualification Model
| |
| − | * '''QMW''' : Queen Mary and Westfield College (London)
| |
| − | * '''QPL''' : Qualified Part List
| |
| − | * '''R/W''' : Read/Write
| |
| − | * '''RAL''' : CCLRC Rutherford Appleton Laboratory (Oxfordshire)
| |
| − | * '''RAM''' : Random Access Memory
| |
| − | * '''RAT''' : A DMC Ring ATtitude object
| |
| − | * '''RCA''' : LFI Radiometer Chain Assembly
| |
| − | * '''RCS''' : Reaction Control Subsystem
| |
| − | * '''RD''' : Reference Document
| |
| − | * '''RAF''' : Raw Attitude history File
| |
| − | * '''REBA''' : LFI Radiometer Electronics Box Assembly
| |
| − | * '''REPOS''' : Re-planned EPOS
| |
| − | * '''REU''' : Readout Electronic Unit
| |
| − | * '''RF''' : Radio Frequency
| |
| − | * '''RFDN''' : Radio Frequency Distribution Network
| |
| − | * '''RFW''' : Request For Waiver
| |
| − | * '''RH''' : Relative Humidity
| |
| − | * '''RII''' : (DMC group/object)
| |
| − | * '''RL''' : Register Load
| |
| − | * '''RLA''' : Register Load Address
| |
| − | * '''RMS''' : Reference Mission Scenario
| |
| − | * '''ROI''' : Ring-Ordered Information (DMC group/object)
| |
| − | * '''ROM''' : Read Only Memory
| |
| − | * '''RPE''' : Relative Pointing Error
| |
| − | * '''rpm''' : revolutions per minute
| |
| − | * '''RSS''' : Root Sum Square
| |
| − | * '''RSSD''' : Research Space Science Division of ESA [ESTEC, Netherlands]
| |
| − | * '''RT''' : Real Time
| |
| − | * '''RTA ''' : Real Time Analysis
| |
| − | * '''RTA ''' : Real Time Assessment
| |
| − | * '''RTK''' : Real Time Kernel
| |
| − | * '''RTSI''' : Real-Time Science Interface (System)
| |
| − | * '''RTU''' : Remote Terminal Unit
| |
| − | * '''S/C''' : Spacecraft
| |
| − | * '''S/S''' : Subsystem (of Spacecraft)
| |
| − | * '''S/W''' : Software
| |
| − | * '''S2K''' : SCOS 2000
| |
| − | * '''SA''' : Solar Array
| |
| − | * '''SAA''' : Solar Aspect Angle
| |
| − | * '''SAMBA''' : Satellite for Measurement of Background Anisotropies
| |
| − | * '''SAP/SPP''' : Service d'Astrophysique et de Physique des Particules du CEA/DAPNIA (Saclay)
| |
| − | * '''SAS''' : Sun Acquisition Sensor
| |
| − | * '''SASW''' : Standard Application Software
| |
| − | * '''SAU''' : Smallest Addressable Unit
| |
| − | * '''SC''' : Sorption Cooler
| |
| − | * '''SCE''' : Sorption Cooler Electronics
| |
| − | * '''SCET''' : Spacecraft Elapsed Time
| |
| − | * '''SCH''' : Scheduling Office (ESOC)
| |
| − | * '''SCM''' : Spacecraft Commissioning Manager (:TP)
| |
| − | * '''SCMP''' : Software Configuration Management Plan
| |
| − | * '''SCOE''' : Special Check Out Equipment
| |
| − | * '''SCOS''' : Spacecraft Operating System
| |
| − | * '''SCS''' : Sorption Cooler Subsystem (Planck)
| |
| − | * '''SCS''' : SpaceCraft Simulator
| |
| − | * '''SDB''' : Spacecraft Data Bus
| |
| − | * '''SDBP''' : S/C Data Bus Protocol
| |
| − | * '''SDS''' : Secure Data Server
| |
| − | * '''SDU''' : Service Data Unit
| |
| − | * '''SE ''' : Systematic Effect
| |
| − | * '''SE''' : System Engineer
| |
| − | * '''SEV ''' : Sun Earth Vector
| |
| − | * '''SEWG ''' : Systematic Effects Working Group
| |
| − | * '''SFDU ''' : Standard Format Data Unit
| |
| − | * '''SGR ''' : Small Gap Recovery
| |
| − | * '''SGS ''' : Science Ground Segment
| |
| − | * '''SGS1''' : Science Ground Segment "critical" tasks
| |
| − | * '''SGS2''' : Science Ground Segment "necessary" tasks
| |
| − | * '''SGSDR ''' : SGS Design Review
| |
| − | * '''SGS-IR ''' : SGS Implementation Review
| |
| − | * '''SGS-RR ''' : SGS Readiness Review
| |
| − | * '''SI ''' : International System (of Units)
| |
| − | * '''SIAM ''' : Spacecraft Instrument Alignment Matrix
| |
| − | * '''SID''' : Structure IDentifier
| |
| − | * '''SIP''' : Science Implementation Plan
| |
| − | * '''SIRD''' : Science Implementation Requirements Document
| |
| − | * '''SLE''' : Space Link Extension
| |
| − | * '''SLES''' : SLE Services
| |
| − | * '''SMP''' : Science Management Plan
| |
| − | * '''SMT''' : (HFI) Science Modelling Team
| |
| − | * '''SOC''' : Science Operations Centre
| |
| − | * '''SODA''' : SCOS-ORATOS Data Access server (FDS interface)
| |
| − | * '''SOM''' : Spacecraft Operations Manager
| |
| − | * '''SOVT ''' : System Operation and Validation Test
| |
| − | * '''SOVT''' : Science Operations Validation Test
| |
| − | * '''SP ''' : Sky Predictor
| |
| − | * '''SpaCon''' : Spacecraft Controller
| |
| − | * '''SPIRE''' : Spectral and Photometric Imaging Receiver (Herschel)
| |
| − | * '''SPMP''' : Software Project Management Plan
| |
| − | * '''SPPT''' : Survey Performance and Planning Tool
| |
| − | * '''SPR''' : SPR Software Problem Report
| |
| − | * '''SQAP''' : Software Quality Assurance Plan
| |
| − | * '''SRD''' :
| |
| − | * '''SREM''' : Space Radiation Environment Monitor
| |
| − | * '''SRP ''' : Solar Radiation Pressure
| |
| − | * '''SRR''' : Software Requirements Review
| |
| − | * '''SS''' : Survey Scientist
| |
| − | * '''SSCE''' : Sun-SpaceCraft-Earth angle max= 15°
| |
| − | * '''SSD''' : Space Science Department (ESTEC)
| |
| − | * '''SSH''' : Secure Shell (protocol)
| |
| − | * '''SSMM''' : Solid State Mass Memory / Solid State Recorder
| |
| − | * '''SSO''' : Solar System Object
| |
| − | * '''SSR''' : Solid State Recorder
| |
| − | * '''ST''' : Science Team
| |
| − | * '''STP''' : System Test Plan
| |
| − | * '''STR ''' : Star TRacker
| |
| − | * '''SVM''' : Service Module
| |
| − | * '''SVT''' : System Validation Test
| |
| − | * '''SVVP''' : Software Verification and Validation Plan
| |
| − | * '''SWCI''' : Software Configuration Item
| |
| − | * '''SwR''' : SoftWare Repository [Component of IDIS]
| |
| − | * '''SZ ''' : Sunyaev-Zel'dovich effect
| |
| − | * '''TA/SP ''' : Trend Analysis/Sky Predictor
| |
| − | * '''TA''' : Trend Analysis
| |
| − | * '''TAB''' : Table (DMC group/object)
| |
| − | * '''TAI''' : Temps Atomique International
| |
| − | * '''TBC''' : To Be Confirmed
| |
| − | * '''TBD''' : To Be Determined
| |
| − | * '''TBM''' : Time Broadcast Message
| |
| − | * '''TBN''' : To Be Nominated
| |
| − | * '''TBV''' : To Be Verified
| |
| − | * '''TBW''' : To Be Written
| |
| − | * '''TC''' : Tele-Command
| |
| − | * '''TCP''' : Tele-Command Packet
| |
| − | * '''TCP''' : Transmission Control Protocol
| |
| − | * '''TCS''' : Thermal Control Subsystem
| |
| − | * '''TCT''' : Thermal Control Table
| |
| − | * '''THF''' : Telecommand History File
| |
| − | * '''TID''' : Task Identifier
| |
| − | * '''TIF''' : TMTCS Interface (for SIM-MCS)
| |
| − | * '''TLA''' : Three Letter Acronym
| |
| − | * '''TM''' : TeleMetry
| |
| − | * '''TMH''' : Telemetry Handling
| |
| − | * '''TMH''' : Telemetry History
| |
| − | * '''TMP''' : Telemetry Packet
| |
| − | * '''TN''' : Technical Note
| |
| − | * '''TOD ''' : Time-Ordered Data
| |
| − | * '''TOI''' : Time Ordered Information (generic or DMC group/object)
| |
| − | * '''TOO''' : Target of Opportunity
| |
| − | * '''ToS''' : Time of Sample (DMC object)
| |
| − | * '''TPF''' : Task Parameter File
| |
| − | * '''TQL''' : Telemetry Quick Look
| |
| − | * '''TRB''' : Test Review Board
| |
| − | * '''TRR''' : Test Readyness Review
| |
| − | * '''TS''' : Time Stamp (DMC group/object)
| |
| − | * '''TSA''' : Sorption Cooler Temperature Stabilization Assembly
| |
| − | * '''TSF''' : Timeline Summary File
| |
| − | * '''TT&C''' : (RF) Tracking, Telemetry, and Command
| |
| − | * '''TTR''' : Telemetry Telecommand Reconfiguration
| |
| − | * '''TVP''' : Target Visibility Predictor
| |
| − | * '''TWTA''' : Travelling Wave Tube Assembly
| |
| − | * '''UAP''' : User's Acceptance Plan
| |
| − | * '''UAR''' : User's Acceptance Report
| |
| − | * '''UCSB''' : University of California at Santa Barbara
| |
| − | * '''UM''' : User's Manual
| |
| − | * '''URD''' : User Requirements Document
| |
| − | * '''USPDC''' : U.S. Planck Data Center (Pasadena, USA)
| |
| − | * '''UTC''' : Universal Time Coordinate(d)
| |
| − | * '''VC''' : Virtual Channel
| |
| − | * '''VECT''' : Vectorial (DMC group/object)
| |
| − | * '''VIO''' : V(I) or Optimisation modes
| |
| − | * '''VMC''' : Visual Monitoring Camera
| |
| − | * '''VO ''' : Virtual Observatory
| |
| − | * '''VT''' : (Technical) Validation Test
| |
| − | * '''VVP''' : Verification and Validation Plan
| |
| − | * '''WAN''' : Wide Area Network
| |
| − | * '''warm units''' : JFET, Bellow, PAU et REU
| |
| − | * '''WBS''' : Work Breakdown Structure
| |
| − | * '''WFE''' : Wave Front Error
| |
| − | * '''WG ''' : Working Group
| |
| − | * '''WHR''' : Weekly Health Report
| |
| − | * '''WMAP''' : Wilkinson Microwave Anisotropy Probe: NASA's satellite
| |
| − | * '''WP''' : Work Package
| |
| − | * '''XCCAS''' : graphic interface to CCAS
| |
| − | * '''XPND''' : Transponder
| |
