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• Main Page
  ##[[HFI design, qualification, and performance|HFI design, qualification, and performance]] ###[[HFI_performance_summary | Performance summary]]
  8 KB (994 words) - 08:41, 4 December 2023
• HFI design, qualification, and performance
  This section provides an overview of the High-Frequency Instrument and of its different sub-systems. * [[HFI_performance_summary | Performance summary]]
  5 KB (789 words) - 12:12, 12 July 2018
• LFI design, qualification, and performance
  ==<span id="LFIDescription">Instrument description</span>== The Low-Frequency Instrument (see Fig. 1 in the [[LFI overview]]) consists of a 20 K focal plane unit ho
  50 KB (7,843 words) - 15:28, 4 July 2018
• Survey scanning and performance
  ...sight of the telescope is 85&deg; from the spin axis. As Planck spins, the instrument beams cover nearly great circles in the sky. The spin axis remains fixed (e ...law included occasional (on the average about once every two months) under-performance of the 1-<i>N</i> thrusters used for regular manoeuvres, which implied that
  37 KB (5,882 words) - 09:23, 10 July 2018
• Data flow overview
  ...me HK and a 20 min period of real-time science (used to monitor instrument performance during the pass). Planck utilises the two ESA deep-space ground stations in
  4 KB (711 words) - 19:15, 17 March 2013
• The LFI DPC
  ...iour of the instrument. Additional tasks of Level 1 relate to its role for instrument control and as the DPC interface with the MOC. Level-1 processing is descri ...sults'' can be found in {{PlanckPapers|planck2013-p02b}}, while instrument performance is reported in {{PlanckPapers|planck2013-p02a}}.
  8 KB (1,104 words) - 15:32, 4 July 2018
• Simulation data
  === Instrument-specific simulations === ...ed to the convolved/deconvolved noise timeline and is then put through the instrument simulation. Note that the sky signal is not convolved/deconvolved with the
  114 KB (17,146 words) - 09:49, 21 February 2022
• Survey history
  ...the Baseline Scanning Strategy with the help of the Software Planning and Performance Tool. The Spacecraft-Instrument Alignment Matrix (SIAM) contains all the geometry information for each dete
  4 KB (630 words) - 15:55, 3 February 2015
• Timelines
  The TOIs described here are sampled regularly at the (instrument-dependent) detector sampling frequency and span the full science mission. ...DPC representation; they begin at 0, corresponding to the switch-on of the instrument, and run to some very large number (about 25 billion for HFI) representing
  40 KB (6,006 words) - 11:30, 22 June 2021
• The Planck mission
  Each of the two instrument consortia operated their respective instrument and processed about 2.6 ms−1 per year. Overall, the excellent performance
  13 KB (2,044 words) - 09:08, 21 August 2013
• The satellite
  |Instrument part: 685 W (Begining of Life), 780 W (End of Life) The performance of the Planck instruments in space is enabled by their low operating temper
  14 KB (2,170 words) - 09:29, 21 May 2014
• Ground Segment and Operations
  all necessary satellite activities, including instrument commanding requests by the instrument operations centres.
  21 KB (3,189 words) - 09:23, 10 July 2018
• TOI processing LFI
  The LFI Level 2 Pipeline analyses data from each horn of the instrument separately, one pointing period at a time, and stores the results in an obj ...arameters <i>a</i>_j from the data. With the assumption that the instrument has stable noise properties, we can use a least squares algorithm to estima
  37 KB (6,274 words) - 16:09, 4 July 2018
• Pre-processing LFI
  ...ellite subsystems, namely the LFI instrument, the sorption cooler, the HFI instrument, and the Central Data Management Unit (CDMU); ...e production of the LFI Daily Quality Report and the estimation of the LFI instrument systematic effects.
  15 KB (2,441 words) - 15:41, 4 July 2018
• HFI sims
  === Instrument simulation === ...ed to the convolved/deconvolved noise timeline and is then put through the instrument simulation. Note that the sky signal is not convolved/deconvolved with the
  29 KB (4,250 words) - 13:56, 2 July 2018
• Beams LFI
  ...ers {{BibCite|darcangelo2009b}} (see also [[LFI design, qualification, and performance#Naming Convention|LFI naming convention]]). ...entation of the polarization axis, different weight factors, etc. See the instrument [[The RIMO|RIMOs]]:
  23 KB (3,593 words) - 15:15, 9 November 2018
• References
  title = {Planck 2013 results: The Low Frequency Instrument data processing (p02)}, title = {Planck 2013 results: High Frequency Instrument Data Processing (p03)},
  173 KB (25,381 words) - 15:29, 4 June 2014
• HFI cold optics & spectral response
  A detailed description of the HFI optical design and beam performance is given in {{PlanckPapers|maffei2010}}. ...he HFI detector spectral transmission profiles is available within the HFI instrument model and [[the RIMO]] files in the [[Appendix#PLA quick start guide|Planck
  25 KB (3,795 words) - 07:52, 6 July 2018
• HFI operations
  ...uploaded in the satellite mission timeline for deferred execution. The HFI instrument health and science data quality was monitored daily by the IOT from launch ...e functional tests of the instrument and its cooldown to 100 mK. Given the performance, the helium flow was set to the minimal one giving an End Of Life estimatio
  2 KB (308 words) - 09:43, 3 February 2015
• HFI detection chain
  thermometer. The instrument Flight Model total number of bolometers is 52, split into six ...minimized to limit the photon noise contribution on the detectors from the instrument.
  15 KB (2,424 words) - 21:36, 19 June 2018

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