Sequencer Site SIRTF IOC Activity c. 2002

CAID: MIPS-234 Title: 160 um Focal Plane Survey (Coarse) #1
 
System: MIPS Principal: jkeene Deputy: 
Objective:  
To measure the location of the 160um array
relative to the PCRS.
 
Description:
Put the CSMM in its nominal SED position to 
direct the light from a bright 160um source 
onto the 160 um array.  Step the image across 
across the array by moving the S/C in 1/2 pixel 
steps (7.5") for a total of 3' (24  steps and 25 
integrations). Use the CSSM to chop 2' off 
source (more if possible). Integrate 3 sec 
each on and off source at each position. 
Repeat at 5 positions along the array.
Insert each scan above within standard FPS 
"PCRS sandwich" measurements.
 
Day:   51.007638888892 Suggested Order:   J400
 
Must be preceded by these activities (list by CAID):   MIPS-324
 
Place in Schedule:   The pointing and tracking must be performing optimally . This task should be performed at least 6 hours after the turn on of MIPS.
 
Priority:   Critical


Conditions

Maximum telescope temperature: 6.5 K
 
Minimum telescope temperature: 5.5 K
 
Should activity be repeated if focus changes?   No     Repeat if focus changes by 0 mm
 
Maximum absolute pointing uncertainty: 3 arcsec (1 sigma radial)
 
Maximum precision offset uncertainty: 0.4 arcsec  (1 sigma radial)
 
Observatory configuration: standard
 
Go/No Go criteria: CSMM, CE, and detectors must be operational, instrument and telescope temperatures must be stable


Resources

Duration:   152 minutes
 
Real time downlink:   No   

Data Volume (uncompressed): 0 Mbits
 
List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): IER to expand normal FOV of 160um photometry AOT
 
List Analysis tools required (downlink):   Pipeline BDC, special mosaic.

Outcome


Estimate of data turn around:   60 hours
 
Description: Centroid of source in pixel coords determined, related to CSMM offset.
 
Can proceed in parallel with other activity: No
 
Must outcome be confirmed before next activity: No
 
Method of Confirmation:   Data Analysis CSMM TLM
 
 
Success criteria: Source appears in the image.
 
Contingency plan:  Correct pointing problem, repeat activity.
 
 

Comments

 
References:  
 
Additional Comments:
This task should be repeated with a different IR source.
 
This activity last updated: 7/25/2002 1:53:42 PM