Principal: alberto
Deputy: dfrayer, jeonghee
Data Monkey(s):
Priority: Normal
Downlink Priority: Normal
Analysis Time: 24hrs
Last Updated:

Objective

The relative throughputs of all the modes of MIPS will be measured. Modify this to reflect that we should use the same sources for this as we use for other cross-calibrations - i.e., with IRS.

Description

The calibration of MIPS will be based on measurements of stars using the Photometry AOT. This task confirms that the Scan Map and Total Power AOTs have the same throughput as the Photometry AOT and determines the relative throughputs between the SED and Photometry AOTs. Three different sources will be observed in all modes to ensure each array (24, 70, & 160 micron) will get a good observation. Two of the three sources should be point sources and the third an extend source to further check the relative behaviors of point and extended sources between modes. Ideally, all the sources would be observable (detected and not saturated) on all three arrays, but this might not be possible. All the observations will be done with 10 MIPS second exposures. For the 24um and 160um arrays, the modes observed will be Photometry, Scan Map, and Total Power AOTs. For the 70um array, the modes observed will be Photometry, Scan Map, Total Power, and SED AOTs. The throughputs between submodes internal to an AOT are assumed to be checked in the validation of the AOT. For example, the throughputs between the different exposures times associated with different scan rates in the Scan Map AOT.

Data Collected

  • more than 1300 DCEs. This is a complex tasks that involves multiple AORS. 
    

#  Please edit this file with care to maintain the
#  correct format so that SPOT can still read it.
#  Generated by SPOT on:  1/21/2003     17:31:24

HEADER: FILE_VERSION=6.2, STATUS = PROPOSAL

      AOT_TYPE:  MIPS Photometry
     AOR_LABEL:  hd186427_24cal
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  hd186427_24cal
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=19h41m51.97s,  DEC_LAT=+50d31m03.1s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

    MICRON_24: FIELD_SIZE = SMALL, EXPOSURE_TIME = 10, N_CYCLES = 1
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=415.4, SLEW_TIME=7.2, SETTLE_TIME=5.0, SLEW_OVERHEAD=180.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=594, DOWNLINK_VOLUME=3267268, VERSION=S6.5.1
INTEGRATION_TIME: MIPS_24=165.675,MIPS_70=0.0,MIPS_160=0.0

COMMENT_START: 
24um calibrator star with visibility of >200days beginning in Apr17
(the task is scheduled for Apr 20). Standard Photometry AOR for
throughtput test mips-150. The star will be observed as well with
scan map and SED.
COMMENT_END: 

      AOT_TYPE:  MIPS Scan Map
     AOR_LABEL:  hd186427_24cal_scn
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  hd186427_24cal_scn
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=19h41m51.97s,  DEC_LAT=+50d31m03.1s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

    REQUIRE_160: YES
      SCAN_RATE: slow
 FAST_RESET_160: NO
      STEP_SIZE: TURNAROUND=0", FORWARD=0"
    N_SCAN_LEGS: 1
   N_MAP_CYCLES: 1
SCAN_LEG_LENGTH: 0.5
MAP_CENTER_OFFSET: CROSS_SCAN = 0, IN_SCAN = 0
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=1469.675, SLEW_TIME=3.4, SETTLE_TIME=22.875, SLEW_OVERHEAD=180.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=525, DOWNLINK_VOLUME=22666685, VERSION=S6.5.1
INTEGRATION_TIME: MIPS_24=104.9,MIPS_70=104.9,MIPS_160=10.5


      AOT_TYPE:  MIPS Total Power
     AOR_LABEL:  hd186427_24cal_tp
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  hd186427_24cal_sed
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=19h41m51.97s,  DEC_LAT=+50d31m03.1s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

    MICRON_24:  EXPOSURE_TIME = 10, N_CYCLES = 5
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=136.0, SLEW_TIME=0.0, SETTLE_TIME=0.0, SLEW_OVERHEAD=0.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=0, DOWNLINK_VOLUME=0, VERSION=USER


      AOT_TYPE:  MIPS Photometry
     AOR_LABEL:  BetGem_160um_pht
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  BetGem_160um_pht
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=7h45m18.95s,  DEC_LAT=+28d01m34.3s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

   MICRON_160: FIELD_SIZE = SMALL, EXPOSURE_TIME = 10, N_CYCLES = 4
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=825.9, SLEW_TIME=6.8, SETTLE_TIME=5.0, SLEW_OVERHEAD=180.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=645, DOWNLINK_VOLUME=10618626, VERSION=S6.5.1
INTEGRATION_TIME: MIPS_24=0.0,MIPS_70=0.0,MIPS_160=83.88608

COMMENT_START: 
Calibration source for 160um, visibility beginning Apr 17,
not the same source unfortunately as the 24um or 70um.
COMMENT_END: 


      AOT_TYPE:  MIPS Scan Map
     AOR_LABEL:  BetGem_160um_scn
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  BetGem_160um_scn
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=7h45m18.95s,  DEC_LAT=+28d01m34.3s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

    REQUIRE_160: YES
      SCAN_RATE: slow
 FAST_RESET_160: NO
      STEP_SIZE: TURNAROUND=0", FORWARD=0"
    N_SCAN_LEGS: 1
   N_MAP_CYCLES: 1
SCAN_LEG_LENGTH: 0.5
MAP_CENTER_OFFSET: CROSS_SCAN = 0, IN_SCAN = 0
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=1469.675, SLEW_TIME=3.4, SETTLE_TIME=22.875, SLEW_OVERHEAD=180.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=525, DOWNLINK_VOLUME=22666685, VERSION=S6.5.1
INTEGRATION_TIME: MIPS_24=104.9,MIPS_70=104.9,MIPS_160=10.5


      AOT_TYPE:  MIPS Total Power
     AOR_LABEL:  BetGem_160um_tp
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  BetGem_160um_tp
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=7h45m18.95s,  DEC_LAT=+28d01m34.3s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

    MICRON_160:  EXPOSURE_TIME = 10, N_CYCLES = 5
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=762.0, SLEW_TIME=0.0, SETTLE_TIME=0.0, SLEW_OVERHEAD=0.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=0, DOWNLINK_VOLUME=0, VERSION=USER


      AOT_TYPE:  MIPS Photometry
     AOR_LABEL:  hd186408_70um_pht
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  HD186408_70um_pht
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=19h41m48.95s,  DEC_LAT=+50d31m30.2s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

   MICRON_160: FIELD_SIZE = SMALL, EXPOSURE_TIME = 10, N_CYCLES = 4
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=825.9, SLEW_TIME=6.8, SETTLE_TIME=5.0, SLEW_OVERHEAD=180.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=645, DOWNLINK_VOLUME=10618626, VERSION=S6.5.1
INTEGRATION_TIME: MIPS_24=0.0,MIPS_70=0.0,MIPS_160=83.88608


      AOT_TYPE:  MIPS Scan Map
     AOR_LABEL:  hd186408_70um_scn
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  HD186408_70um_scn
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=19h41m48.95s,  DEC_LAT=+50d31m30.2s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

    REQUIRE_160: YES
      SCAN_RATE: slow
 FAST_RESET_160: NO
      STEP_SIZE: TURNAROUND=0", FORWARD=0"
    N_SCAN_LEGS: 1
   N_MAP_CYCLES: 1
SCAN_LEG_LENGTH: 0.5
MAP_CENTER_OFFSET: CROSS_SCAN = 0, IN_SCAN = 0
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=1469.675, SLEW_TIME=3.4, SETTLE_TIME=22.875, SLEW_OVERHEAD=180.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=525, DOWNLINK_VOLUME=22666685, VERSION=S6.5.1
INTEGRATION_TIME: MIPS_24=104.9,MIPS_70=104.9,MIPS_160=10.5


      AOT_TYPE:  MIPS Total Power
     AOR_LABEL:  hd186498_70um_tp
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  HD186408_70um_tp
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=19h41m48.95s,  DEC_LAT=+50d31m30.2s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

    MICRON_70:  EXPOSURE_TIME = 10, N_CYCLES = 5
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=762.0, SLEW_TIME=0.0, SETTLE_TIME=0.0, SLEW_OVERHEAD=0.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=0, DOWNLINK_VOLUME=0, VERSION=USER


      AOT_TYPE:  MIPS SED
     AOR_LABEL:  hd186408_70um_sed
    AOR_STATUS:  new

 MOVING_TARGET:  NO
   TARGET_TYPE:  FIXED SINGLE
   TARGET_NAME:  HD186408_70um_sed
  COORD_SYSTEM:  Equatorial  J2000
      POSITION:  RA_LON=19h41m48.95s,  DEC_LAT=+50d31m30.2s
OBJECT_AVOIDANCE:  EARTH = YES, OTHERS = YES

SED:  EXPOSURE_TIME = 10, CHOP_DISTANCE = +2, N_CYCLES = 1
SPECIAL: IMPACT = none, LATE_EPHEMERIS = NO,SECOND_LOOK = NO
RESOURCE_EST: TOTAL_DURATION=429.7, SLEW_TIME=5.6, SETTLE_TIME=5.0, SLEW_OVERHEAD=180.0, SPECIAL_OVERHEAD=0.0, UPLINK_VOLUME=656, DOWNLINK_VOLUME=3267268, VERSION=S6.5.1
INTEGRATION_TIME: MIPS_24=0.0,MIPS_70=62.91,MIPS_160=0.0

    Data Reformatting Requirements

    Array Data Desired:

    For the 3 arrays in scan map. 24, 70 nd 160micron for their corresponding photometry AORs.

    Data Reformatting Option:

    Special Instructions:
    none

    Task Dependencies

    Calibration Dependencies

    Full calibration pipeline is required.

    Output and Deliverable Products

  • More than 1300 DCEs

    Data Analysis

    Photometric measurements on BCDs of both the Scan map and Photometry AORs is needed.

    Software Requirements

    Actions Following Analysis

    Compare the calibrated fluxes (throughtputs) of each observing mode and determine (based on the uncetainties) their similarities or differences.

    Failure Modes and Responses

    A.N-C. needs to think carefully about this, but has not yet (Jan 21'03). Since all observing modes are involved, there are multiple options on what can go wrong and should be fixed. Probably it will be during the commissioning of the AORs that we will know already how different things can be.

    Additional Notes