| CAID: MIPS-317 | Title: Off-axis Glints | |
| System: MIPS | Principal: dlp | Deputy: mrieke |
| Objective: | Search for scattered light and glints from stars out of the field-of-view. This tests the sky observing paths rather than contamination of MIPS darks (see other scattered light proposal for that). |
| Description: | Using an extremely bright source like IRC+10216 or equivalent, take 4 scans beginning ~5" outside the field of view and extending to 3 degrees away. Use the medium scan mode (40-second per point). REVISION - use photometry AORs with cluster pointings to populate the positions around the periphery of the arrays. This task will be performed with 24um only. We will make a sparse map over a 3 degree by 3 degree region with pointings separated by 10 arcminutes. Additional pointings will be done near the nominal FOV and in suspicious regions identified by N. Gautier as possible glint sites from screw heads, etc. |
| Day: 68.9673611111139 | Suggested Order: Q500 | ||
| Must be preceded by these activities (list by CAID): MIPS-355 | |||
| Place in Schedule: After aperture door is opened, telescope cold, CSMM operational, minimal photometry validation, cluster validation | |||
| 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: | 5 arcsec (1 sigma radial) | ||
| Maximum precision offset uncertainty: | 5 arcsec (1 sigma radial) | ||
| Observatory configuration: | standard | ||
| Go/No Go criteria: | MIPS operational, telescope cold, CSMM performing as expected | ||
Duration: 900 minutes
| | Real time downlink:
No | | |||
| Data Volume (uncompressed): 400 Mbits | |||
| List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): Uses the photometry AOT with cluster offset pointings. | |||
| List Analysis tools required (downlink): standard MIPS pipeline; image analysis package | |||
| Estimate of data turn around: 48 hours | |||
| Description: Any operational constraints about bright objects just outside the field-of-view will be understood. | |||
| Can proceed in parallel with other activity: No | |||
| Must outcome be confirmed before next activity: No | |||
| Method of Confirmation: data analysis | |||
| Success criteria: Received all data; data unsaturated, and background low enough to evaluate faint glints. Pointing ok. | |||
| Contingency plan: If test fails it should be repeated. | |||
Comments | |||
| References: | |||
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Additional Comments:
Required Conditions: Telescope must be fully cold at 5.5K. Basic MIPS functionality must have been confirmed. | |||
| This activity last updated: 4/19/2002 10:47:11 AM | |||