Differences between revisions 26 and 27
Revision 26 as of 2006-11-09 15:49:25
Size: 13040
Comment:
Revision 27 as of 2006-11-09 15:50:38
Size: 13031
Comment:
Deletions are marked like this. Additions are marked like this.
Line 255: Line 255:
   * procedure '''PHOT_set_bias''' (6x, once for each group)    * procedure '''PHOT_set_bias'''
Line 264: Line 264:
   * procedure '''PHOT_fltw_move''' (12x)    * procedure '''PHOT_fltw_move'''
Line 266: Line 266:
   * procedure '''CS_on_off''' (2x)
   * procedure '''CS_temp''' (2x)
   * procedure '''CS_on_off'''
   * procedure '''CS_temp'''
Line 270: Line 270:
 * ending up in '''SAFE mode'''


PACS bolometer operation from the commanding point of view


T. Mueller, D. Cesarsky; 08-Nov-2006

Index TableOfContents(2)


1. Short Functional Tests (PhFPU related)


1.1. SFT Warm: Sorption Cooler and Bolometer detector chain

  • PACS_Phot_SFT_Cooler_Warm_OBS, calling PACS_Phot_SFT_Cooler_Warm

  • PACS_Phot_DPU_DMC_Setup_OBS, calling PACS_Phot_DPU_DMC_Setup

  • PACS_Phot_Switchon_OBS, calling PACS_Phot_Switchon

  • PACS_Phot_Sequencer_Setup_OBS, calling PACS_Phot_Sequencer_Setup

  • PACS_Phot_SPU_Setup_OBS, calling PACS_Phot_SPU_Setup

  • PACS_Phot_Warm_Startinputsignal_OBS, calling PACS_Phot_Warm_Startinputsignal (Duration: 637 sec)

  • PACS_Phot_SPU_Reset_OBS, calling PACS_Phot_SPU_Reset

  • PACS_Phot_Switchoff_OBS, calling PACS_Phot_Switchoff

Note: No specific autonomy functions are involved here (except AF#6 to check for the communication between DMC and BOLC)

1.2. SFT at HeI: Sorption Cooler and Bolometer detector chain

  • PACS_Phot_SFT_Cooler_OBS, calling PACS_Phot_SFT_Cooler

  • PACS_Phot_DPU_DMC_Setup_OBS, calling PACS_Phot_DPU_DMC_Setup

  • PACS_Phot_Switchon_OBS, calling PACS_Phot_Switchon

  • PACS_Phot_Sequencer_Setup_OBS, calling PACS_Phot_Sequencer_Setup

  • PACS_Phot_SPU_Setup_OBS, calling PACS_Phot_SPU_Setup

  • PACS_Phot_Cold_Startinputsignal_OBS, calling PACS_Phot_Cold_Startinputsignal (Duration: 637 sec)

  • PACS_Phot_SPU_Reset_OBS, calling PACS_Phot_SPU_Reset

  • PACS_Phot_Switchoff_OBS, calling PACS_Phot_Switchoff

Note: No specific autonomy functions are involved here (except AF#6 to check for the communication between DMC and BOLC)

1.3. SFT at HeII (cooler not recycled): Sorption Cooler and Bolometer detector chain

  • PACS_Phot_SFT_Cooler_OBS, calling PACS_Phot_SFT_Cooler

  • PACS_Phot_DPU_DMC_Setup_OBS, calling PACS_Phot_DPU_DMC_Setup

  • PACS_Phot_Switchon_OBS, calling PACS_Phot_Switchon

  • PACS_Phot_Sequencer_Setup_OBS, calling PACS_Phot_Sequencer_Setup

  • PACS_Phot_SPU_Setup_OBS, calling PACS_Phot_SPU_Setup

  • PACS_Phot_Cold_Startinputsignal_OBS, calling PACS_Phot_Cold_Startinputsignal (Duration: 637 sec)BR

  • PACS_Phot_SPU_Reset_OBS, calling PACS_Phot_SPU_Reset

  • PACS_Phot_Switchoff_OBS, calling PACS_Phot_Switchoff

Note: No specific autonomy functions are involved here (except AF#6 to check for the communication between DMC and BOLC)


2. Nominal Operations


2.1. Instrument switch-on and connection of the warm electronic boxes

  • currently done with tcl-script PACS_Switch_On.tcl (maintained by FGB)

  • after execution: PACS is in SAFE mode, the bolometer groups are off, but the temperature sensors are on

Note: Autonomy function #6 is enabled to check for the communication between DMC and BOLC

2.2. Cooler recycling (only at HeII temperatures)

  • starting out of SAFE mode (groups off, temperature sensors on)

  • mode BOLO_cooler_OBS calling the CUS procedure BOLO_cool_recycle:

    • no sub-procedures are called, the groups and temperature sensors are not touched
    • HK_list is set to PHOT_HK and reset to "NON-PRIME" in the end
    • autonomy function 14 is enabled, Duration: 7928 sec
  • ending up in SAFE mode (groups are off, temperature sensors on, HSP heater current at 1.18 mA)

Note: At the end of the recycling the autonomy function 14 is enabled. It checks for TEMP_EV, TEMP_FPU1, TEMP_FPU2: --> HK DEC SOFT is generated if one or more are out of the range [260,320] mK; --> GO SAFE is generated if one or more are above 400 mK

2.3. General Setup for Photometer Operation (after cooler recycling)

  • starting out of SAFE mode (groups off, temperature sensors on)

  • mode PHOT_setup_OBS calling the block PHOT_setup, calling the following CUS procedures:

    • procedure PHOT_dpu_dmc_setup
    • procedure PHOT_dmc_setup
      • procedure PHOT_fltw_conf
      • procedure PHOT_fltw_move
      • procedure CONF_chopper
      • procedure CHOP_on_off
      • procedure CONF_cs
      • procedure CS_on_off (2x)
      • procedure CS_temp (2x)
    • procedure PHOT_switchon_groups
    • procedure PHOT_set_bias (*)
    • procedure PHOT_seq_setup
    • procedure PHOT_change_data_mode
    • procedure PHOT_change_seq_mode
    • procedure PHOT_set_gain
    • procedure PHOT_spu_setup
      • (*) the bias tables to be loaded can change!
  • ending up in Photometry mode, but SPU processing has not yet started

  • filter is in position "A", chopper at position "0"
  • calibration sources are set to default values, but need 40-50 min stabilisation time!!!

Note 1: At the end of the PHOT_setup_OBS the autonomy function 17 "generate_event_pwr" is enabled. It checks for the HK entries: PC_PWR_ANA_P_#, PC_PWR_ANA_N_# and PC_PWR_DIG_#, with # = [1,2,3,4,5,6,7]

Note 2: PHOT_setup_OBS can be called via the generic tcl-script (with a default bias table) or via a specific tcl-script together with a special bias table.

2.4. Operation of the bolometers (starting out of '''Photometry mode''')

2.4.1. start/stop of bolometer data flow

  • mode PHOT_spu_setup_OBS calling procedure PHOT_spu_setup ---> bolometer data flow running

  • mode PHOT_spu_reset_OBS calling procedure PHOT_spu_reset ---> bolometer data flow stopped

2.4.2. Change of the bolometer data/sequence mode and gain

  • procedure PHOT_change_data_mode

  • procedure PHOT_change_seq_mode

  • procedure PHOT_set_gain

  • or via MSTK with individual commands

2.4.3. Take data with manual chopper & filter movements

  • mode PHOT_spu_setup_OBS calling procedure PHOT_spu_setup ---> bolometer data flow running

    • mode PACS_fltw_move_OBS calling procedure PHOT_fltw_move (or SPEC_fltw_move)

    • or command Pacs_DMC_MOVE_CHOP_ABS

    • or command Pacs_DMC_MOVE_CHOP_REL

  • mode PHOT_spu_reset_OBS calling procedure PHOT_spu_reset ---> bolometer data flow stopped

Note: PACS_fltw_move_OBS can be called via a specific tcl-script where the filter has to be specified.

2.4.4. Take data with pre-defined OBCPs

  • mode OBCP_chopped_photometry_OBS calling blocks/procedures:

    • procedure PHOT_spu_setup

    • procedure PHOT_fltw_move

    • block OBCP_chopped_photometry

    • procedure PHOT_fltw_move

    • block OBCP_chopped_photometry

    • procedure PHOT_fltw_move

    • procedure PHOT_spu_reset

  • mode OBCP_phot_chopper_scan_OBS calling blocks/procedures:

    • procedure PHOT_spu_setup

    • procedure PHOT_fltw_move

    • block OBCP_phot_chopper_scan

    • procedure PHOT_fltw_move

    • block OBCP_phot_chopper_scan

    • procedure PHOT_fltw_move

    • procedure PHOT_spu_reset

  • mode OBCP_fixed_fixed_photo_OBS calling blocks/procedures:

    • procedure PHOT_spu_setup

    • procedure PHOT_fltw_move

    • block OBCP_fixed_fixed_photo

    • procedure PHOT_fltw_move

    • block OBCP_fixed_fixed_photo

    • procedure PHOT_fltw_move

    • procedure PHOT_spu_reset

  • mode PHOT_all_aots_OBS calling the following blocks/procedures:

    • procedure PHOT_spu_setup

    • procedure PHOT_fltw_move

    • block OBCP_chopped_photometry

    • block OBCP_chopped_photometry_dither

    • block OBCP_phot_freezeframe

    • block OBCP_phot_cal_I

    • block OBCP_phot_cal_II

    • block OBCP_phot_cal_III

    • block OBCP_phot_staring

    • block OBCP_phot_chopper_scan

    • block OBCP_fixed_fixed_photo

    • procedure PHOT_fltw_move

    • block OBCP_chopped_photometry

    • block OBCP_chopped_photometry_dither

    • block OBCP_phot_freezeframe

    • block OBCP_phot_cal_I

    • block OBCP_phot_cal_II

    • block OBCP_phot_cal_III

    • block OBCP_phot_staring

    • block OBCP_phot_chopper_scan

    • block OBCP_fixed_fixed_photo

    • procedure PHOT_fltw_move

    • procedure PHOT_spu_reset

Note: all these modes can be started with default parameters via the generic tcl-script; the three key-OBCPs can also be started with freely selectable parameters via specific tcl-scripts

2.4.5. Execute AOT observations

  • CUS scripts (to be finalised):BR

    • PHOT_AOTBR

      • - PacsPhotDefaultsBR - PacsPhotEstimatorOBCPnBR

        • - PacsDureeOBCP5BR

          • - DMC_phot_2_3_chopBR

          - PacsDureeOBCP7BR

          • - DMC_staring_photBR

        Logic chooses and issues a pointing mode out of:BR

        • - composite_noddingBR - repeated_raster_with_holdBR - line_scan_with_holdBR

        - WriteOBSIDBR - PacsPhotSlewCalBR

        • - PHOT_aot_prologueBR

          • - PHOT_spu_setupBR

          - PHOT_fltw_moveBR - OBCP_chopped_photometryBR

        - PacsPhotCommandOBCP7BR

        • - OBCP_staring_photometryBR

        - PacsPhotCommandOBCP5BR

        • - OBCP_chopped_photometry_ditherBR

        - PHOT_aot_epilogueBR - WriteEndIDBR - PacsPhotNoiseRMSBR - PacsMessageCenterBR

Note: the default OBCP for point-source photometry will probably be the OBCP_fixed_fixed_photo.

2.5. Reset after photometer operation

  • PACS is in PHOTOMETRY or any other mode

  • execute mode PHOT_switchoff_groups_OBS calling procedure PHOT_switchoff_groups (this will reset the biases sequentially, disable the AF 17, and switch off the groups)

  • going into SAFE mode (this will disable the AF 14 for the FPU temperature checks)

  • after execution: PACS is in SAFE mode (groups are off, temperature sensors on, AF 6 enabled to check for the communication between DMC and BOLC)

2.6. Instrument switch-off

  • currently done with the tcl-script PACS_Switch_Off.tcl (maintained by FGB) (this will disable the AF 6 for the DMC-BOLC communication check)

  • after execution: PACS is switched off


3. Specific Bolometer Tests


3.1. Thermal Behaviour Test

  • starting out of SAFE mode

  • mode PHOT_thermal_OBS calling the following blocks/procedures:

    • procedure PHOT_dpu_dmc_setup

    • procedure PHOT_switchon_groups

    • procedure PHOT_set_bias

    • procedure PHOT_seq_setup

    • procedure PHOT_change_data_mode

    • procedure PHOT_change_seq_mode

    • procedure PHOT_set_gain

    • procedure CONF_chopper

    • procedure CHOP_on_off

    • block OBCP_chopped_photometry

    • procedure PHOT_fltw_conf

    • procedure PHOT_fltw_move

    • procedure CONF_cs

    • procedure CS_on_off

    • procedure CS_temp

    • procedure PHOT_switchoff_groups

    • procedure PHOT_dpu_dmc_reset

  • ending up in SAFE mode

3.2. SPU Modes & Detector Selection Tests

3.3. Other Tests


4. NOTES


  • the SFT tests are described in PACS-ME-TP-007
  • some specific photometer tests, like the thermal behaviour measurement or the cooler recycling, start directly out of SAFE mode, while most of the tests will be executed after the PHOT_setup_OBS when the instrument is in Photometry mode

  • the above mentioned CUS scripts (with a few exceptions) have been tested and are available in the CUS database and from the CVS library
  • the AOT related CUS-scripts are still under testing

Herschel: PACS/FM_ILT_Procedures/PhotOperations (last edited 2009-07-15 14:32:37 by localhost)