Sequencer Site SIRTF IOC Activity c. 2002

CAID: MIPS-191 Title: Dark Verification, 70 um
 
System: MIPS Principal: kgordon Deputy: 
Objective:   
Verify that dark current measurements with
different exposure times scale.
 
Description: 
Point to 70 um primary dark position and take dark
current
measurements at 3, 4,  & 10 seconds and 
compare them.

Point to 70 um secondary dark position and take
dark current
measurements at 3, 4,  & 10 seconds and 
compare them.
 
Day:   0 Suggested Order:  
 
Must be preceded by these activities (list by CAID):  
 
Place in Schedule:  
 
Priority:   Necessary

Conditions

Maximum telescope temperature: 15 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: 0 arcsec (1 sigma radial)
 
Maximum precision offset uncertainty: 0 arcsec  (1 sigma radial)
 
Observatory configuration: standard
 
Go/No Go criteria:

Resources

Duration:   30.3 minutes
 
Real time downlink:   No   

Data Volume (uncompressed): 33.6 Mbits
 
List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): Dark IERs: mips_drk70umA_10s35, mips_drk70umB_10s35, mips_drk70umA_3s101, mips_drk70umB_3s101, mips_drk70umA_4s77, mips_drk70umB_4s77
 
List Analysis tools required (downlink):   DAT - mips_sloper, mips_caler, mips_enhancer

Outcome

Estimate of data turn around:   24 hours
 
Description: Create 70um dark current calibration images. Standard output of mips_enhancer.
 
Can proceed in parallel with other activity: No
 
Must outcome be confirmed before next activity: No
 
Method of Confirmation:   Create dark current images. Compare the scale the all the images to 10 second and see if they are equivalent.
 
 
Success criteria: Good dark current measurement. No weird behaviors (check ramps, stim latents, etc).
 
Contingency plan:  It's a calibration frame. If there are large differences between exposure times then we will have to start taking darks with all the exposure times routinely.
 
 

Comments

 
References:  
 
Additional Comments:
To be scheduled once during IOC/SV.
 
This activity last updated: 6/14/2002 10:53:22 AM