| CAID: MIPS-306 | Title: 70 um IC - detailed, Scan AOR | |
| System: MIPS | Principal: aalonso | Deputy: dfrayer |
| Objective: | Acquire the data needed to produce illumination-correction frames for the 70um array. Enough DCEs (~30) are taken at each scan-mirror deflection angle (33 positions) to allow us to produce an illumination correction for each scan-mirror position. If these individual flats are judged to be indistinguishable they can be combined to create a single IC. Perform the necessary data reduction (median-filtering) needed to create the IC frames. This activity is a companion to the ROUTINE Scan and Photometry AOR illumination-correction activities. These activities will allow us to determine the relative efficiency and quality of flatfields created using scan and photometry AORs. |
| Description: | A 5-degree long x 3 legs scan map is taken using the fast-scan AOT in a region of sky chosen to avoid bright point-sources. The map will require about 65.9 minutes of observing time. |
| Day: 68.2840277777868 | Suggested Order: Q100 | ||
| Must be preceded by these activities (list by CAID): MIPS-329, MIPS-915, MIPS-918 | |||
| Place in Schedule: Telescope temperature stable. MIPS temperature stable. CSMM operational. This task could possibly serve for both 70 and 160 um. | |||
| 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: | 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: 65.9 minutes
| | Real time downlink:
No | | |||
| Data Volume (uncompressed): 810.1 Mbits | |||
| List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): Scan AOR | |||
| List Analysis tools required (downlink): standard pipeline | |||
| Estimate of data turn around: 24 hours | |||
| Description: Illumination corrections for the 70 um array at all scan-mirror positions visited during scan operations. | |||
| Can proceed in parallel with other activity: No | |||
| Must outcome be confirmed before next activity: No | |||
| Method of Confirmation: data analysis | |||
| Success criteria: ICs display no noticeable source residuals, have good S/N. Calibrated FPS and AOT validation data sets have source signal independent of postion in image. | |||
| Contingency plan: Can use flats from ground-test data as a start; Must obtain good sky flats during IOC, though. | |||
Comments | |||
| References: | |||
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Additional Comments:
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| This activity last updated: 11/16/2001 1:54:29 PM | |||