Sequencer Site SIRTF IOC Activity c. 2002

CAID: MIPS-355 Title: AOT Cluster Option Validation
 
System: MIPS Principal: dlp Deputy: wlatter
Objective:  
Verify that the cluster option is implemented
correctly for all MIPS AOTs.
 
Description:
Take a series of observations of sources defined
in the cluster option for the MIPS 
Photometry/SuperRes and SED AOTs.
Phot/SR and SED AOTs of minimum length at several
cluster option positions and all cluster 
options	
Phot/SR: 24 um FOV only, 3 second exposures, small
field, 1 cycle per cluster position	
SED: 3 second exposures, minimum chop, 1 cycle per
cluster position

This procedure uses:

1) fixed cluster - offset + center
2) fixed cluster - offset only
3) fixed cluster - position
4) moving cluster - offset
5) moving cluster - offset + center
 
Day:   61.4881944444496 Suggested Order:   O350
 
Must be preceded by these activities (list by CAID):   MIPS-320
 
Place in Schedule:   After aperture door open After CTA/instrument cool down to a level where bright stars can be seen: For 24um, bakground must be less than 4.0e-10 W/cm^2/sr (< 37 K). For 70um, background must be less than 1.2e-10 W/m^2/sr (< 16 K). For 160um, bakcgound must be less than 5.3e-11 W/m^2/sr (< < 8.5 K). Data acquizition in the 24 um band only is sufficient for this test. Basic instrument commanding and functionality must have been confirmed. After initial Phot/SR and SED AOT basic testing is complete.
 
Priority:   Necessary


Conditions

Maximum telescope temperature: 12 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: 0.5 arcsec  (1 sigma radial)
 
Observatory configuration: standard
 
Go/No Go criteria: MIPS operational, 24 um background tolerable, PCS performance near optimal for offset.


Resources

Duration:   50 minutes
 
Real time downlink:   No   

Data Volume (uncompressed): 40 Mbits
 
List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): Standard pipeline and data analysis tools. MIPS Phot/SR ans SED skeleton AOT required
 
List Analysis tools required (downlink):   MIPS interactive pipeline; image analysis tools

Outcome


Estimate of data turn around:   10 hours
 
Description: Several positions in the Phot/SR and SED AOTs will be executed. Standard data products will result.
 
Can proceed in parallel with other activity: No
 
Must outcome be confirmed before next activity: No
 
Method of Confirmation:   Data analysis to validate sizes of PCS offsets between cluster positions.
 
 
Success criteria: All data received. Stars visible in all images. All observations execute as expected. PCS performance validated.
 
Contingency plan:  Revisit cluster option design.
 
 

Comments

 
References:  
 
Additional Comments:
Required Conditions: CTA and instrument at nominal operational temperature. PCS performance: 10 arcsec pointing and nominal offsetting.
 
This activity last updated: 4/19/2002 10:50:41 AM