Difference between revisions of "Glossary"

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This page gives definition of some words commonly used in this Explanatory Supplement.
 
This page gives definition of some words commonly used in this Explanatory Supplement.
  
 
* '''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]
 
* '''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.
 
* '''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]].
 
 
* '''4KCDE''' : 4K Cooler Drive Electronics
 
* '''AAD''' : Attitude Anomaly Detector
 
* '''AAU''' : ACMS Auxiliary Unit
 
* '''ABCL''' : As Built Configuration List
 
* '''AC''' : Alternating Current
 
* '''ACC''' : ACMS Control Computer
 
* '''ACK''' : Acknowledgement
 
 
* '''ACMS''' : Attitude Control & Measurement Subsystem (AOCS)
 
* '''ACMS''' : Attitude Control & Measurement Subsystem (AOCS)
* '''AD''' : Applicable Document
 
* '''ADD''' : Architecture Design Document
 
 
* '''AHF''' : Attitude History File
 
* '''AHF''' : Attitude History File
* '''AID''' : Activity IDentifier
 
* '''AIT''' : Assembly Integration &Test (:before delivery)
 
* '''AIV''' : Assembly Integration &Verification (:after delivery)
 
* '''ALM''' : (DMC group/object)
 
* '''ALOS''' : Around Line of Sight
 
* '''AME''' : Attitude Measurement Error
 
* '''AO''' : Announcement of Opportunity
 
* '''AOCS''' : Attitude and Orbit Control System (dispositif de reconstruction de la direction d'observation)
 
* '''AOS''' : Acquisition Of Signal
 
* '''APC''' : Laboratoire d'Astroparticule et Cosmologie (Paris)
 
* '''APE''' : Absolut Pointing Error
 
* '''APF ''' : Attitude Parameter File
 
* '''API''' : Application Programming Interface
 
 
* '''APID''' : Application Program Identifier
 
* '''APID''' : Application Program Identifier
 
* '''APPL ''' : Augmented Preprogrammed Pointing List
 
* '''APPL ''' : Augmented Preprogrammed Pointing List
* '''ARE''' : Absolut Rate Error
 
* '''ASAP ''' : As Soon As Possible
 
* '''ASCII ''' : American Standard Code of Information Interchange
 
* '''ASF''' : ASF Attitude Snapshot File
 
* '''ASI''' : Italian Space Agency
 
* '''ASPI''' : .
 
* '''ASW''' : Application Software
 
* '''AT''' : Acceptance Test
 
* '''ATP''' : Acceptance Test Plan
 
* '''AVM''' : Avionics Model
 
* '''BBM''' : Breadboard Model (of the data processing pipeline)
 
* '''BOL''' : Begin Of Life
 
* '''BSS ''' : Baseline Scanning Strategy
 
* '''BSW''' : Basic SoftWare
 
* '''BSW''' : Boot SoftWare
 
* '''CC''' : Compressed Channel
 
* '''CC''' : Configuration Control
 
* '''CCALI ''' : a larger computer at the CCIN2P3
 
* '''CCAS''' : Control, Commanding and Acquisition System
 
* '''CCB''' : Configuration Control Board
 
* '''CCIN2P3''' : IN2P3 Computing Center (Lyon)
 
* '''CCS''' : Central Check-Out System = HPCCS = SCOS
 
* '''CCS''' : Configuration Control System
 
* '''CCSDS''' : Consultative Committee for Space Data Systems
 
* '''CDC''' : Calibration Device Control (process)
 
 
* '''CDMS''' : Command and Data Management System
 
* '''CDMS''' : Command and Data Management System
 
* '''CDMU''' : Command and Data Management Unit
 
* '''CDMU''' : Command and Data Management Unit
* '''CEA''' : Commissariat à  l'Energie Atomique
 
* '''cernox''' : see HCT
 
* '''CESR''' : Centre d'Etudes Spatiales des Rayonnements (Toulouse)
 
* '''CIDL''' : Configuration Item Data List
 
* '''CIT''' : California Institute of Technology
 
* '''CITA''' : Canadian Institute for Theoretical Physics (Toronto)
 
* '''CL''' : (DMC group/object)
 
* '''CLTU''' : Command Link Transmission Unit
 
 
* '''CMB''' : Cosmic Microwave background
 
* '''CMB''' : Cosmic Microwave background
* '''CMP''' : Configuration Management Plan
 
* '''CMT''' : Configuration Management Tool
 
* '''CNES''' : Centre National d'Etudes Spatiales (Toulouse)
 
* '''CO''' : Calibration Observation
 
* '''COBRAS ''' : COsmic Background Anisotropy Satellite
 
* '''COEG''' : Cryo Ops Engineering Group
 
* '''COI''' : (DMC group/object)
 
* '''COM''' : Commissioning Operations Manager (:MK)
 
 
* '''CoP''' : Commissioning Phase
 
* '''CoP''' : Commissioning Phase
* '''COTS''' : Commercial Off The Shelf [Software]
 
* '''Co-I''' : Co-Investigator
 
* '''CPAC''' : Cambridge Planck Analysis Centre
 
* '''CPDU''' : Command Pulse Distribution Unit
 
* '''CPU ''' : Central Processing Unit
 
* '''CPV''' : Calibration and Performance Verification
 
* '''CQM''' : Cryogenic Qualification Model.
 
* '''CR''' : Change Request
 
* '''CR''' : Cosmic Ray
 
* '''CRAT''' : Commanding Request Acceptance Table
 
* '''CRC''' : Cyclic Redundancy Check
 
* '''CReMA''' : Consolidated Report on Mission Analysis
 
* '''CRP''' : Contingency Recovery Procedure
 
* '''CRS''' : Coarse Rate Sensor
 
* '''CRTBT''' : Centre de Recherche sur les Très Basses Températures (Grenoble)
 
* '''CS''' : Compression Slice
 
* '''CSA''' : Canadian Space Agency
 
* '''CSL''' : Centre Spatial de Liège (Belgique)
 
* '''CSSW''' : Common Service SoftWare
 
* '''CT ''' : Core Team
 
* '''CT''' : Compatibility Test
 
* '''CTP''' : A working group that studies map making and power spectra analysis
 
 
* '''CTR''' : Central Time Reference
 
* '''CTR''' : Central Time Reference
* '''CTT''' : Compatibility Test Trailer
 
* '''CTWG''' : Core Team Working Group
 
 
* '''CUC''' : CCSDS Unsegmented Time Code
 
* '''CUC''' : CCSDS Unsegmented Time Code
* '''CVS''' : Concurrent Versioning System
 
* '''CWG''' : Commonality Working Group
 
* '''DAE''' : LFI Data Acquisition Electronics
 
* '''DB ''' : Database
 
* '''DCA''' : Dedicated Control Area
 
* '''DCR''' : Dedicated Control Room
 
 
* '''DCE''' : Dilution Cooler Electronics
 
* '''DCE''' : Dilution Cooler Electronics
* '''DD''' : Planck Ground Segment Design Document
 
* '''DDL''' : Data Definition Layer
 
 
* '''DDS''' : MOC's Data Distribution System
 
* '''DDS''' : MOC's Data Distribution System
 
* '''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]].
 
* '''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]].
* '''DFE''' : Data Front-End Equipment
 
* '''DFT''' : Data Flow Test
 
* '''DM''' : (DPC Pipeline) Development Model
 
* '''DMC''' : Data Management Component [Component of of IDIS]
 
* '''DMCI''' : Data Management Component Interfaces
 
* '''DMS''' : Document Managing System [Component of of IDIS]
 
 
* '''DPC''' : Data Processing Center
 
* '''DPC''' : Data Processing Center
* '''DPCM''' : Data Processing Centre Manager
 
* '''DPCT''' : Data Processing Centre Team
 
* '''DPCTM''' : Data Processing Centre Technical Manager
 
 
* '''DPU''' : Data Processing Unit
 
* '''DPU''' : Data Processing Unit
 
* '''DQR ''' : Daily Quality Report
 
* '''DQR ''' : Daily Quality Report
* '''DR ''' : Design Review
 
* '''DRB''' : 
 
* '''DSA''' : Deep Space Antenna
 
* '''DSN''' : Deep Space Network
 
* '''DSP''' : Digital Signal Processing
 
* '''DSRI''' : Danish Space Research Institute
 
 
* '''DTCP''' : Daily Tele-Communication Period
 
* '''DTCP''' : Daily Tele-Communication Period
* '''E2E''' : End to end (tests)
 
* '''ECR''' : Engineering Change Request
 
* '''ED ''' : Event Designator
 
 
* '''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.
 
* '''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.
* '''EGSE''' : Electrical Ground Support Equipment
 
* '''EID''' : Event Identifier
 
* '''EM''' : Engineering Model
 
* '''EMC''' : Electromagnetic Couplings
 
* '''EMI''' : Electromagnetic Interferences
 
* '''EOC''' : End Of Commissioning
 
 
* '''EOL''' : End Of Life
 
* '''EOL''' : End Of Life
* '''EP''' : Entrance Pupil
 
* '''EPC''' : Electric Power Conditioner
 
* '''EPOS''' : Enhanced Preferred Observation
 
* '''EPS''' : Electrical Power Subsystem
 
 
* '''ERCSC''' : Early Release Compact Source Catalog
 
* '''ERCSC''' : Early Release Compact Source Catalog
 
* '''ESA''' : European Space Agency
 
* '''ESA''' : European Space Agency
* '''ESAC''' : European Space Astronomy Center (Villafranca, Spain)
 
* '''ESAF''' : ESTRACK Station Allocation File (: DTCP schedule)
 
 
* '''ESOC''' : European Space Operations Centre (Darmstadt)
 
* '''ESOC''' : European Space Operations Centre (Darmstadt)
 
* '''ESTEC''' : European Space TEchnology and Research Centre
 
* '''ESTEC''' : European Space TEchnology and Research Centre
* '''EVL''' : Event Logger
 
* '''FAR''' : Flight Acceptance Review
 
* '''FCP''' : Flight Control Procedure
 
* '''FCT ''' : Flight Control Team
 
* '''FD ''' : Flight Dynamics (Supports MOC activities)
 
* '''FDD ''' : Flight Dynamics Division (at MOC/ESOC)
 
* '''FDIR''' : Failure Detection, Isolation and Recovery functions
 
* '''FDS ''' : Flight Dynamics System
 
* '''FedL''' : access manager and federating system : composant de IDIS
 
* '''FFT''' : Fast Fourier Transform
 
* '''FID''' : Function IDentifier
 
* '''FINDAS''' : FIRST Integrated Network And Data Archive System
 
* '''FIRST ''' : Far InfraRed and Sub-millimetre Telescope
 
 
* '''FITS ''' : Flexible Image Transfer Specification
 
* '''FITS ''' : Flexible Image Transfer Specification
* '''FL''' : Federation Layer
 
* '''FLS''' : First Light Survey
 
* '''FM''' : Flight Model
 
* '''FM-1''' : Flight Model version 1 (DPC Pipeline)
 
 
* '''focal plane geometry'''  [HFI meaning]
 
* '''focal plane geometry'''  [HFI meaning]
 
* '''FOG''' : Fiber Optic Gyroscope
 
* '''FOG''' : Fiber Optic Gyroscope
* '''FOI''' : (DMC group/object)
 
* '''FOP''' : Flight Operations Plan
 
 
* '''FOV''' : Field-Of-View
 
* '''FOV''' : Field-Of-View
* '''FP''' : Focal Plane
 
* '''FP''' : Formal Parameter
 
* '''FPA''' : Focal Plane Assembly
 
* '''FPDA''' : Focal Plane Detection Assembly
 
* '''FPG ''' : Focal Plane Geometry
 
 
* '''FPU''' : Focal Plane Unit
 
* '''FPU''' : Focal Plane Unit
 
* '''FWHM ''' : Full-Width-at-Half-Maximum
 
* '''FWHM ''' : Full-Width-at-Half-Maximum
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* '''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.
 
* '''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.
 
* '''HSK''' : House-Keeping data
 
* '''HSK''' : House-Keeping data
* '''HSL''' : High Speed Link
 
* '''HTML ''' : Hyper Text Mark-up Language
 
* '''HTTP ''' : Hyper Text Transport Protocol
 
* '''HWCI''' : Hardware Configuration Item
 
* '''I&T ''' : Integration and Testing
 
* '''IA''' : Interactive Analysis
 
* '''IAP''' : Institut d'Astrophysique de Paris (Paris)
 
* '''IAS''' : Institut d'Astrophysique Spatiale (Orsay)
 
* '''IC''' : Imperial College (London)
 
 
* '''ICD''' : Interface Control Document
 
* '''ICD''' : Interface Control Document
* '''IC-DB ''' : Instrument Control Database
 
* '''ICF''' : Intrinsic Correlation Function
 
* '''ICP''' : Instrument Command Parameter
 
* '''ICSs''' : Instrument Command Sequences
 
* '''ICT''' : 
 
* '''ICWG''' : Instrument Coordination Working Group
 
* '''ID''' : Identification, Identifier
 
* '''IDIS''' : Integrated Data and Information System
 
* '''IDIS-DT''' : IDIS Development Team
 
* '''IDIS-MT''' : IDIS Management Team
 
* '''IDL ''' : Interactive Display Language
 
* '''IDT''' : Instrument Development Team
 
* '''I-EGSE''' : Instrument Electric Ground Support Equipment
 
* '''IFAR''' : Instrument Flight Acceptance Review
 
* '''IID-A''' : Instrument Interface Document, Part A
 
* '''IID-B''' : Instrument Interface Document, Part B
 
* '''ILT''' : Instrument Level Test
 
 
* '''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.
 
* '''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.
* '''IMOG ''' : Instrument Model Group
 
* '''IN2P3''' : Institut National de Physique Nuclaire et de Physique des Particules
 
* '''IoA''' : Institute of Astronomy (University of Cambridge)
 
* '''IOCR''' : In Orbit Commissioning Review
 
* '''IOCTA''' : In-Orbit Calibration and Test Activities
 
* '''IOCTA-DD''' : In-Orbit Calibration and Test Activities Detailled Document
 
* '''IOCTRD''' : In-Orbit Calibration and Test Requirements Document
 
* '''IOM''' : Instrument Operations Manager
 
 
* '''IOT''' : Instrument Operation Team
 
* '''IOT''' : Instrument Operation Team
* '''IP''' : Internet Protocol
 
* '''IPAC''' : Infrared Processing and Analysis Centre (Nasa, Caltech, USA)
 
* '''IPR''' : Interface Pc Readout
 
* '''IRAS''' : Infrared Astronomical Satellite
 
* '''IRD''' : Planck Ground Segment Interface Requirement Document
 
* '''IRT''' : Inertial Reference Time
 
* '''IS''' : Instrument Scientist
 
* '''ISDC''' : Integral Science Data Center
 
* '''ISDN''' : Integrated Services Data Network
 
* '''ISN''' : Institut des Sciences Nucléaires (Grenoble)
 
* '''ISO''' : International Standards Organisation
 
* '''IST''' : Instrument System Test
 
* '''IT''' : Integration Test
 
* '''ITSG''' : Integration and Testing Steering Group
 
* '''ITSSR''' : Integration and Test Schedule and Status Report
 
* '''IW@HOC''' : Instrument Workstation located at HOC
 
* '''IW@MOC''' : Instrument Workstation located at MOC
 
* '''IW''' : Instrument Work Station
 
 
* '''JFET''' : Junction Field Elect Transistor
 
* '''JFET''' : Junction Field Elect Transistor
* '''JPL''' : Jet Propulsion Laboratory
 
* '''JS''' : Jitter Strip
 
* '''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
 
* '''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
 
* '''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
 
* '''LOBT''' : Local On Board Time
 
* '''LOS''' : Line Of Sight
 
* '''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
 
 
* '''mission''' [HFI meaning]
 
* '''mission''' [HFI meaning]
* '''ML ''' : Maximum Likelihood
 
* '''MLI''' : Multi Layer Insulation
 
 
* '''MOC''' : [ESA's] Mission Operation Center [Darmstadt, Germany]
 
* '''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
 
* '''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
 
* '''OBT ''' : On-Board Time
* '''OCF''' : Operational Control Field
 
* '''OCM''' : Orbital Control Mode
 
 
* '''OD''' : Operational Day
 
* '''OD''' : Operational Day
* '''ODB ''' : Operational DataBase
 
* '''OGS''' : Operational Ground Segment
 
* '''OGSE''' : Optics Ground Support Equipment
 
* '''OIRD''' : Operations Interface Requirements Document
 
 
* '''optical beam''' [HFI meaning]
 
* '''optical beam''' [HFI meaning]
 
* '''P/L''' : Payload
 
* '''P/L''' : Payload
 
* '''PAU''' : Pre_Amplification Unit
 
* '''PAU''' : Pre_Amplification Unit
 
* '''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
* '''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
 
* '''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
 
* '''PLA ''' : Planck Legacy Archive
 
* '''PLM''' : Payload Module
 
* '''PLM''' : Payload Module
* '''PM''' : Project Manager
 
* '''POD''' : Planning and Observation Data [File]
 
 
* '''POI''' : Phase-Ordered Information (DMC group/object)
 
* '''POI''' : Phase-Ordered Information (DMC group/object)
 
* '''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.
* '''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 ''' : Pre-programmed Pointing List
* '''PPL''' : Planned Pointing List
 
* '''PPL''' : Preference Part List
 
 
* '''PPLM''' : Planck Payload Module
 
* '''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
 
* '''PSM ''' : Planck Sky Model
 
* '''PSO''' : Planck Science Office
 
* '''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
 
* '''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
 
* '''RAF''' : Raw Attitude history File
 
* '''REBA''' : LFI Radiometer Electronics Box Assembly
 
* '''REBA''' : LFI Radiometer Electronics Box Assembly
* '''REPOS''' : Re-planned EPOS
 
 
* '''REU''' : Readout Electronic Unit
 
* '''REU''' : Readout Electronic Unit
* '''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.
 
* '''ROI''' : Ring-Ordered Information (DMC group/object)
 
* '''ROI''' : Ring-Ordered Information (DMC group/object)
 
* '''rpm''' : revolutions per minute
 
* '''rpm''' : revolutions per minute
Line 427: Line 77:
 
* '''S/C''' : Spacecraft
 
* '''S/C''' : Spacecraft
 
* '''SAA''' : Solar Aspect Angle
 
* '''SAA''' : Solar Aspect Angle
 +
* '''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.
 
* '''SCS''' : Sorption Cooler Subsystem (Planck)
 
* '''SCS''' : Sorption Cooler Subsystem (Planck)
 
* '''SEV ''' : Sun Earth Vector
 
* '''SEV ''' : Sun Earth Vector
Line 439: Line 91:
 
* '''SSO''' : Solar System Object
 
* '''SSO''' : Solar System Object
 
* '''STR ''' : Star TRacker
 
* '''STR ''' : Star TRacker
 +
* '''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]].
 
* '''SVM''' : Service Module
 
* '''SVM''' : Service Module
 
* '''SZ ''' : Sunyaev-Zel'dovich effect
 
* '''SZ ''' : Sunyaev-Zel'dovich effect

Revision as of 10:52, 25 January 2013


This page gives definition of some words commonly used in this Explanatory Supplement.

  • ACMS : Attitude Control & Measurement Subsystem (AOCS)
  • AHF : Attitude History File
  • APID : Application Program Identifier
  • APPL  : Augmented Preprogrammed Pointing List
  • CDMS : Command and Data Management System
  • CDMU : Command and Data Management Unit
  • CMB : Cosmic Microwave background
  • CoP : Commissioning Phase
  • CTR : Central Time Reference
  • CUC : CCSDS Unsegmented Time Code
  • DCE : Dilution Cooler Electronics
  • DDS : MOC's Data Distribution System
  • 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 here.
  • DPC : Data Processing Center
  • DPU : Data Processing Unit
  • DQR  : Daily Quality Report
  • DTCP : Daily Tele-Communication Period
  • 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.
  • EOL : End Of Life
  • ERCSC : Early Release Compact Source Catalog
  • ESA : European Space Agency
  • ESOC : European Space Operations Centre (Darmstadt)
  • ESTEC : European Space TEchnology and Research Centre
  • FITS  : Flexible Image Transfer Specification
  • focal plane geometry [HFI meaning]
  • FOG : Fiber Optic Gyroscope
  • FOV : Field-Of-View
  • FPU : Focal Plane Unit
  • FWHM  : Full-Width-at-Half-Maximum
  • HCM : Angular momentum Control Mode
  • HEMT : High Electron Mobility Transistor
  • HFI : High Frequency Instrument
  • HPFTS : Herschel/Planck File Transfer System
  • HPMCS : Herschel/Planck Mission Control System
  • 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.
  • HSK : House-Keeping data
  • ICD : Interface Control Document
  • 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.
  • IOT : Instrument Operation Team
  • JFET : Junction Field Elect Transistor
  • LEOP : Launch & Early Orbit Phase
  • LFI : (Planck) Low Frequency Instrument
  • LOBT : Local On Board Time
  • LOS : Line Of Sight
  • mission [HFI meaning]
  • MOC : [ESA's] Mission Operation Center [Darmstadt, Germany]
  • NET  : Noise Equivalent Temperature
  • OBT  : On-Board Time
  • OD : Operational Day
  • optical beam [HFI meaning]
  • P/L : Payload
  • PAU : Pre_Amplification Unit
  • PBR [HFI meaning]: Phase Bin Rings provide a compressed and higher signal-to-noise ratio rendition of the original Time Order Data
  • PI : Principal Investigator
  • PLA  : Planck Legacy Archive
  • PLM : Payload Module
  • POI : Phase-Ordered Information (DMC group/object)
  • 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.
  • PPL  : Pre-programmed Pointing List
  • PPLM : Planck Payload Module
  • PSM  : Planck Sky Model
  • PSO : Planck Science Office
  • PUS : Packet Utilisation Standard
  • RAF : Raw Attitude history File
  • REBA : LFI Radiometer Electronics Box Assembly
  • REU : Readout Electronic Unit
  • ring [HFI meaning]: at the HFI DPC level the ring is the time intervalle between two First Thurster Firings as defined in 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.
  • ROI : Ring-Ordered Information (DMC group/object)
  • rpm : revolutions per minute
  • RSSD : Research Space Science Division of ESA [ESTEC, Netherlands]
  • S/C : Spacecraft
  • SAA : Solar Aspect Angle
  • 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.
  • SCS : Sorption Cooler Subsystem (Planck)
  • SEV  : Sun Earth Vector
  • SGR  : Small Gap Recovery
  • SGS  : Science Ground Segment
  • SIAM  : Spacecraft Instrument Alignment Matrix
  • SOVT  : System Operation and Validation Test
  • SPPT : Survey Performance and Planning Tool
  • SREM : Space Radiation Environment Monitor
  • SRP  : Solar Radiation Pressure
  • SSCE : Sun-SpaceCraft-Earth angle max= 15°
  • SSO : Solar System Object
  • STR  : Star TRacker
  • survey [HFI meaning]: sky surveys (aka Scan #)are defined in terms of the direction of the satellite's spin axis. Survey periods are given here.
  • SVM : Service Module
  • SZ  : Sunyaev-Zel'dovich effect
  • TBC : To Be Confirmed
  • TBD : To Be Determined
  • TC : Tele-Command
  • THF : Telecommand History File
  • TOD  : Time-Ordered Data
  • TOI : Time Ordered Information
  • ToS : Time of Sample
  • UTC : Universal Time Coordinate(d)
  • warm units : JFET, Bellow, PAU et REU
  • WHR : Weekly Health Report

Attitude Control & Measurement Subsystem (AOCS)

Attitude History File

Application Program Identifier

Augmented Preprogrammed Pointing List

Command and Data Management System

Command and Data Management Unit

Cosmic Microwave background

Commissioning Phase

Central Time Reference

CCSDS Unsegmented Time Code

Dilution Cooler Electronics

MOC's Data Distribution System

[ESA's] Mission Operation Center [Darmstadt, Germany]

(Planck) High Frequency Instrument

Data Processing Center

Data Processing Unit

Daily Quality Report

Daily Tele-Communication Period

End Of Life

Early Release Compact Source Catalog

European Space Agency

European Space Operations Centre (Darmstadt)

European Space TEchnology and Research Centre

Flexible Image Transfer Specification

Fiber Optic Gyroscope

Field-Of-View

Focal Plane Unit

Full-Width-at-Half-Maximum

Angular momentum Control Mode

High Electron Mobility Transistor

Herschel/Planck File Transfer System

Herschel/Planck Mission Control System

(Hierarchical Equal Area isoLatitude Pixelation of a sphere, <ref name="Template:Gorski2005">HEALPix: A Framework for High-Resolution Discretization and Fast Analysis of Data Distributed on the Sphere, K. M. Górski, E. Hivon, A. J. Banday, B. D. Wandelt, F. K. Hansen, M. Reinecke, M. Bartelmann, ApJ, 622, 759-771, (2005).

House-Keeping data

Interface Control Document

reduced IMO

Instrument Operation Team

Junction Field Elect Transistor

Launch & Early Orbit Phase

(Planck) Low Frequency Instrument

Local On Board Time

Line Of Sight

Noise Equivalent Temperature

On-Board Time

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.

Payload

Pre_Amplification Unit

Principal Investigator

Planck Legacy Archive

Payload Module

Phase-Ordered Information (DMC group/object)

Data Management Component, the databases used at the HFI and LFI DPCs

Pre-programmed Pointing List

Planck Payload Module

Planck Sky Model

Planck Science Office

Packet Utilisation Standard

Raw Attitude history File

LFI Radiometer Electronics Box Assembly

Readout Electronic Unit

Ring-Ordered Information (DMC group/object)

revolutions per minute

Research Space Science Division of ESA [ESTEC, Netherlands]

Spacecraft

Solar Aspect Angle

Sorption Cooler Subsystem (Planck)

Sun Earth Vector

Small Gap Recovery

Science Ground Segment

Spacecraft Instrument Alignment Matrix

System Operation and Validation Test

Survey Performance and Planning Tool

Space Radiation Environment Monitor

Solar Radiation Pressure

Sun-SpaceCraft-Earth angle max= 15°

Solar System Object

Star TRacker

Service Module

Sunyaev-Zel'dovich

To be confirmed

To be defined / determined

Tele-Command

Telecommand History File

Time of Sample

Universal Time Coordinate(d)

JFET, Bellow, PAU et REU

JFET, Bellow, PAU et REU

Weekly Health Report