1. SFT Warm: Sorption Cooler and Bolometer detector chain

- PACS_Phot_SFT_Cooler_Warm_OBS, calling PACS_Phot_SFT_Cooler_WarmBR

- PACS_Phot_DPU_DMC_Setup_OBS, calling PACS_Phot_DPU_DMC_SetupBR - PACS_Phot_Switchon_OBS, calling PACS_Phot_SwitchonBR - PACS_Phot_Sequencer_Setup_OBS, calling PACS_Phot_Sequencer_SetupBR - PACS_Phot_SPU_Setup_OBS, calling PACS_Phot_SPU_SetupBR - PACS_Phot_Warm_Startinputsignal_OBS, calling PACS_Phot_Warm_Startinputsignal (Duration: 637 sec)BR - PACS_Phot_SPU_Reset_OBS, calling PACS_Phot_SPU_ResetBR - PACS_Phot_Switchoff_OBS, calling PACS_Phot_Switchoff

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

- PACS_Phot_SFT_Cooler_OBS, calling PACS_Phot_SFT_CoolerBR

- PACS_Phot_DPU_DMC_Setup_OBS, calling PACS_Phot_DPU_DMC_SetupBR - PACS_Phot_Switchon_OBS, calling PACS_Phot_SwitchonBR - PACS_Phot_Sequencer_Setup_OBS, calling PACS_Phot_Sequencer_SetupBR - PACS_Phot_SPU_Setup_OBS, calling PACS_Phot_SPU_SetupBR - PACS_Phot_Cold_Startinputsignal_OBS, calling PACS_Phot_Cold_Startinputsignal (Duration: 637 sec)BR - PACS_Phot_SPU_Reset_OBS, calling PACS_Phot_SPU_ResetBR - PACS_Phot_Switchoff_OBS, calling PACS_Phot_Switchoff

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

- PACS_Phot_SFT_Cooler_OBS, calling PACS_Phot_SFT_CoolerBR

- PACS_Phot_DPU_DMC_Setup_OBS, calling PACS_Phot_DPU_DMC_SetupBR - PACS_Phot_Switchon_OBS, calling PACS_Phot_SwitchonBR - PACS_Phot_Sequencer_Setup_OBS, calling PACS_Phot_Sequencer_SetupBR - PACS_Phot_SPU_Setup_OBS, calling PACS_Phot_SPU_SetupBR - PACS_Phot_Cold_Startinputsignal_OBS, calling PACS_Phot_Cold_Startinputsignal (Duration: 637 sec)BR - PACS_Phot_SPU_Reset_OBS, calling PACS_Phot_SPU_ResetBR - PACS_Phot_Switchoff_OBS, calling PACS_Phot_SwitchoffBR

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

- currently done with tcl-script PACS_Switch_On.tcl (maintained by FGB)BR - after execution: PACS is in SAFE mode, the bolometer groups are off, but the

temperature sensors are on

5. Cooler recycling (only at HeII temperatures)

- starting out of SAFE mode (groups off, temperature sensors on) BR - CUS script: BOLO_cool_recycle (no sub-procedures are called,

the groups and temperature sensors are not touched, HK_list is set
to PHOT_HK and in the end reset to "NON-PRIME"), Duration: 7928 secBR

- ending up in SAFE mode (groups are off, temperature sensors on)BR

6. General Setup for Photometer Operation (at warm, HeI, HeII temperatures and after cooler recycling)

- starting out of SAFE mode (groups off, temperature sensors on)BR - CUS script:BR

block PHOT_setup calling the following CUS procedures (will be renamed to PHOT_orbit_prologue):
- - procedure PHOT_dpu_dmc_setupBR - procedure PHOT_dmc_setupBR
  - - procedure PHOT_fltw_conf (*)BR - procedure CONF_chopper (*)BR - procedure CONF_cs (*)BR
  - procedure PHOT_switchon_groupsBR - procedure PHOT_set_bias (*)BR - procedure PHOT_seq_setupBR - procedure PHOT_change_data_modeBR - procedure PHOT_change_seq_modeBR - procedure PHOT_set_gainBR - procedure PHOT_spu_setupBR

(*) certain parameter values depend on the temperature environment!BR

- ending up in PHOTOMETRY mode, but SPU processing has not yet startedBR - Note: filter is in position "A", chopper at position "0"BR - calibration sources are set to default values, but need 40-50 min stabilisation time!!!BR

7. Operation of the bolometers (starting out of PHOTOMETRY mode)

7.1. start/stop of bolometer data flow

CUS scripts:BR
- - procedure PHOT_spu_setup ---> bolometer data flow running BR - procedure PHOT_spu_reset BR

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

CUS scripts:BR
- - procedure PHOT_change_data_modeBR - procedure PHOT_change_seq_modeBR - procedure PHOT_set_gainBR

7.3. Take data with manual chopper & filter movements

CUS scripts:BR
- - procedure PHOT_spu_setup ---> bolometer data flow runningBR
  - - procedure PHOT_fltw_moveBR - command Pacs_DMC_MOVE_CHOP_ABSBR - command Pacs_DMC_MOVE_CHOP_RELBR
  - procedure PHOT_spu_resetBR

7.4. Take data with pre-defined OBCPs

CUS scripts:BR
- - procedure PHOT_spu_setup ---> bolometer data flow runningBR
  - - block OBCP_chopped_photometryBR - block OBCP_chopped_photometry_ditherBR - block OBCP_phot_freezeframeBR - block OBCP_phot_cal_IBR - block OBCP_phot_cal_IIBR - block OBCP_phot_cal_IIIBR - block OBCP_phot_staringBR - block OBCP_phot_chopper_scanBR
  - - block PHOT_all_aots_OBSBR
  - procedure PHOT_spu_resetBR

7.5. Execute AOT observations

CUS scripts (to be finalised):BR
- PHOT_AOTBR
  - - PacsPhotDefaults BR - 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 - PacsPhotSlewCal BR
    - - 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 - PacsMessageCenter BR

8. Reset after photometer operation

- PACS is in PHOTOMETRY or any other modeBR - going into SAFE mode:BR
- CUS scripts:BR
  - - block OBCP_SAFEBR
- after execution: PACS is in SAFE modeBR

9. Instrument switch-off

- currently done with the tcl-script PACS_Switch_Off.tcl (maintained by FGB)BR - after execution: PACS is switched offBR

10. NOTES

- there are more CUS scripts related to the SFT warm, HeI and HeII which are not mentioned here (see PACS-ME-TP-007)BR - some specific photometer tests, like the thermal behaviour measurements, start directly out of SAFE mode, while most of the tests will be executed after the PHOT_setup - the above mentioned CUS scripts (with a few exceptions) have been tested and are available in the CUS database and from the CVS libraryBR - 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)

-  ⇤ ← Revision 5 as of 2006-11-08 11:08:22 → 
  Size: 9562
  Editor: ThomasMueller
  Comment:
+   ← Revision 6 as of 2006-11-08 12:41:41 → ⇥
  Size: 9936
  Editor: ThomasMueller
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 11:
-= SFT Warm: Sorption Cooler and Bolometer detector chain=
+= SFT Warm: Sorption Cooler and Bolometer detector chain =
 Line 21:
-- '''PACS_Phot_Switchoff_OBS''', calling '''PACS_Phot_Switchoff'''[[BR]]
+- '''PACS_Phot_Switchoff_OBS''', calling '''PACS_Phot_Switchoff'''
 Line 24:
-= SFT at HeI: Sorption Cooler and Bolometer detector chain=
+= SFT at HeI: Sorption Cooler and Bolometer detector chain =
 Line 34:
-- '''PACS_Phot_Switchoff_OBS''', calling '''PACS_Phot_Switchoff'''[[BR]]
+- '''PACS_Phot_Switchoff_OBS''', calling '''PACS_Phot_Switchoff'''
 Line 37:
-= SFT at HeII (cooler not recycled): Sorption Cooler and Bolometer detector chain=
+= SFT at HeII (cooler not recycled): Sorption Cooler and Bolometer detector chain =
 Line 54:
-- after execution: PACS is in SAFE mode
+- after execution: PACS is in SAFE mode, the bolometer groups are off, but the
  temperature sensors are on
-Line 60:
+Line 61:
-- starting out of SAFE mode[[BR]]
- CUS script:  '''BOLO_cool_recycle''' (no sub-procedures are called)[[BR]]
- ending up in SAFE mode[[BR]]
+- starting out of SAFE mode (groups off, temperature sensors on) [[BR]] 
- CUS script:  '''BOLO_cool_recycle''' (no sub-procedures are called,
  the groups and temperature sensors are not touched, HK_list is set
  to PHOT_HK and in the end reset to "NON-PRIME"), Duration: 7928 sec[[BR]]
- ending up in SAFE mode (groups are off, temperature sensors on)[[BR]]
-Line 68:
+Line 71:
-- starting out of SAFE mode[[BR]]
+- starting out of SAFE mode (groups off, temperature sensors on)[[BR]]
-Line 77:
+Line 80:
+               - procedure  PHOT_switchon_groups[[BR]]
-Line 87:
+Line 91:
-  - calibration sources are set to default values, but need 30-40 min stabilisation time!!![[BR]]
+  - calibration sources are set to default values, but need 40-50 min stabilisation time!!![[BR]]

Herschel: Diff for "PACS/FM_ILT_Procedures/PhotOperations"