| CAID: MIPS-914 | Title: 24 um Flat - routine, Scan AOR | |
| System: MIPS | Principal: aalonso | Deputy: sstolovy |
| Objective: | To obtain IOC acceptable 24um scan flat fields to be used on a regular basis. This activity is a companion to the 24 um Flat ROUTINE Phot AOR. The pair of activities will allow us to determine the relative efficiency and quality of flatfields created using scan and photometry AORs. |
| Description: | A 2 degree long (1 leg) scan map will be obtained using the fast-scan AOT in a region of the sky chosen to avoid bright point sources. This will produce a total of 118 images to be median combined to produce a 24 um flat. The map will require about 12.7 minutes of observing time. |
| Day: 48.149305555562 | Suggested Order: | ||
| Must be preceded by these activities (list by CAID): MIPS-329 | |||
| Place in Schedule: MIPS CE, CSMM, stim operation nominal. CTA temperature within range, and MIPS temperature stable. 24um background falls below 1% of 25MJy/sr, the medium sky background level, at 25K, so it should be possible to obtain good dat a for this activity for CTA temperatures below that even if the CTA temperature is changing. | |||
| Priority: Critical | |||
Conditions | |||
| Maximum telescope temperature: | 33 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: | 1 arcsec (1 sigma radial) | ||
| Observatory configuration: | standard | ||
| Go/No Go criteria: | CSMM, CE, and stims and detectors must be operational, instrument and telescope temperatures must be stable | ||
Duration: 13 minutes
| | Real time downlink:
No | | |||
| Data Volume (uncompressed): 120.5 Mbits | |||
| List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): Use scan map AOTS. | |||
| List Analysis tools required (downlink): standard pipeline | |||
| Estimate of data turn around: 24 hours | |||
| Description: A 24 um flatfield for scan AORs. | |||
| Can proceed in parallel with other activity: No | |||
| Must outcome be confirmed before next activity: No | |||
| Method of Confirmation: data analysis | |||
| Success criteria: Flats/I.C.s display no noticeable source residuals, have good S/N. Flattened/I.C.d FPS and AOT validation data sets have source signal independent of position in image. | |||
| Contingency plan: | |||
Comments | |||
| References: | |||
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Additional Comments:
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| This activity last updated: 11/19/2001 12:16:03 PM | |||