HFIpreprocessingstatics

From Planck PLA Wiki
Revision as of 10:30, 22 October 2012 by Lvibert (talk | contribs)
Jump to: navigation, search

This page details the statiscs given in the pre-processing section.

The following table describes the different time intervals: Definition of the phases of the HFI mission:

definition Operational day # Date HFI ring # pointing-IDs
Launch / first HFI data - 14/05/2009 13:12:00 / 14/05/2009 14:20:18 - -
CPV phase 1 - 90 14/05/2009 14:20:18 - 12/08/2009 14:13:44 0 - 239 not significant
Sky survey 1 91 - 270 12/08/2009 14:13:44 - 08/02/2010 20:51:31 240 - 5720 4200 - 1059820
Sky survey 2 270 - 456 08/02/2010 20:51:31 - 12/08/2010 19:27:27 5721 - 11194 1059830 - 2114520
Sky survey 3 456 - 636 12/08/2010 19:27:27 - 08/02/2011 20:55:47 11195 - 16691 2114530 - 3193660
Sky survey 4 640 - 807 08/02/2011 20:55:47 - 29/07/2011 17:43:31 16692 - 21720 3193670 - 4243900
Sky survey 5 807 - 974 29/07/2011 17:43:31 - 13/01/2012 14:54:11 21721 - 27008 4243900 - 5322620
Nominal mission 91 - 563 12/08/2009 14:13:44 - 28/11/2010 12:01:02 240 - 14723 4200 - 14723
Full mission 91 - 974 12/08/2009 14:13:44 - 13/01/2012 14:54:11 240 - 27008 4200 - 5322620


The next table gives some statistics about the data handled at the pre-processing level:

- Nominal mission Full mission From launch to the end of full mission
Duration 473 days 884 days 974 days
Number of HFI packets generated onboard (HSK/science)(1)
Number of HFI packets lost on board (HSK/science) 2 / 20 2 / 20 2 / 20
Number of HFI packets lost on ground (HSK/science) 0 / 0 0 / 0 0 / 0
Number of retreived HFI packets (HSK/science)
Number of science samples stored in the database 530 632 594 653 991 929 524 565 1 090 125 748 960
Number of missing science samples 17 050 65 310 7 521 758 (2)
Number of different housekeeping parameters stored in the database (HFI/SCS/sat) align="center"|3174 / 708 / 12390


  • (1) : science packets refer to the number of telemetry packets containing bolometer data when the instrument is in observation mode (Application Program Identifier = 1412). HSK packets refer to the number of HFI non essential housekeeping telemetry packets (Application Program Identifier = 1410).
  • (2) : this amount of lost bolometer samples lost is essentially due to tests made during the CPV phase and aren't part of the surveys.

(Planck) High Frequency Instrument

Calibration and Performance Verification

House-Keeping data

Sorption Cooler Subsystem (Planck)