| CAID: MIPS-307 | Title: 160 um IC - detailed, Scan AOR | |
| System: MIPS | Principal: aalonso | Deputy: dfrayer |
| Objective: | Acquire the data needed to produce illumination-correction frames for the 160um array. Enough DCEs (~30) are taken at each scan-mirror deflection angle (33 positions) to allow us to produce a flat for each scan-mirror position. If these individual flats are judged to be indistinguishable they can be combined to create a single flat. Perform the necessary data reduction (median-filtering) needed to create the flatfield frames. This activity is a companion to the ROUTINE Scan and Photometry AOR illumination-correction activity. 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. It will be necessary to check the quality of the 160um IC as when the data are taken in fast mode a filled map is not produced in a single pass. If this introduces artifacts, it may be necessary to repeat the IC at medium scan rate. |
| Day: 68.3298611111168 | Suggested Order: Q100 | ||
| Must be preceded by these activities (list by CAID): MIPS-329, MIPS-916, MIPS-919 | |||
| Place in Schedule: Telescope temperature stable and appropiate for 160um observations. MIPS temperature stable. CSMM operational. | |||
| Priority: Necessary | |||
Conditions | |||
| Maximum telescope temperature: | 6.5 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 telescopetemperatures must be stable | ||
Duration: 66 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 160 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 position 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: 11/19/2001 12:14:44 PM | |||