| CAID: MIPS-265 | Title: Confusion Limits Determination | |
| System: MIPS | Principal: mrieke | Deputy: |
| Objective: | Deep observations at 24,70 and 160 microns to estimate the MIPS confusion limits at three galactic latitudes (low background, high, and intermediate). |
| Description: | Acquire normal scan observations at 24, 70 and 160 microns of three 5 arcmin X 1 degree fields at, or near the galactic pole, the equator, and an intermediate position. Three scan map AORs executed at three different pointings: Slow scan rate, 1 degree leg length, 5" cross-scan steps and 4 scan legs at low background Medium rate with 2 legs at intermediate background levels Fast rate with 4 legs at high background |
| Day: 86.2493055555606 | Suggested Order: W400 | ||
| Must be preceded by these activities (list by CAID): MIPS-327, MIPS-328, MIPS-329 | |||
| Place in Schedule: After CTA/instrument cool down and all other instrument testing is complete. For 160 um performance, the backgrd radiance must be less than 5.2E-13 W/cm2/sr (< 6 K). Can be concurrent with other AOT/instrument tests. | |||
| Priority: Desired | |||
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: | 5 arcsec (1 sigma radial) | ||
| Maximum precision offset uncertainty: | 5 arcsec (1 sigma radial) | ||
| Observatory configuration: | Point at 3 different sky locations | ||
| Go/No Go criteria: | Scan map AOT must be functional | ||
Duration: 228 minutes
| | Real time downlink:
No | | |||
| Data Volume (uncompressed): 300 Mbits | |||
| List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): Standard pipeline system and standard data analysis tools required. MIPS scan AOT required for uplink. | |||
| List Analysis tools required (downlink): | |||
| Estimate of data turn around: 48 hours | |||
| Description: Fully calibrated MIPS scan data products in three bands at levels that will permit estimate of confusion levels | |||
| Can proceed in parallel with other activity: No | |||
| Must outcome be confirmed before next activity: No | |||
| Method of Confirmation: Data analysis | |||
| Success criteria: Measure fluxes at levels in agreement with pre-launch estimates | |||
| Contingency plan: Revisit pipeline and/or AOT design depending on the nature of a failure. | |||
Comments | |||
| References: | |||
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Additional Comments:
Required Conditions: CTA and instrument at nominal operating temperature for the 160 um band (< 6 K). PCS performance needs to be nominal in pointing, offsetting, and scan stability. | |||
| This activity last updated: 7/2/2002 4:56:33 PM | |||