Sequencer Site SIRTF IOC Activity c. 2002

Objective:

Verify that dark current measurements with
different exposure times scale.

Description:

Point to 24 um dark position and take dark current
measurements at 3, 4, 10, & 30 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:	40 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


Data Volume (uncompressed): 0 Mbits

List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): Dark IERs: mips_drk24um_10s35, mips_drk24um_30s13, mips_drk24um_3s101, and mips_drk24um_4s77

List Analysis tools required (downlink): DAT - mips_sloper, mips_caler, mips_enhancer

Estimate of data turn around: 24 hours

Description: Create 24um dark current calibration image. 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: 10/9/2002 12:49:11 PM