| CAID: MIPS-155 | Title: 24um Latent Images and Saturated Sources | |
| System: MIPS | Principal: dlp | Deputy: jmuzerolle |
| Objective: | Understand the consequences of observing very bright sources with MIPS. |
| Description: | Observations corresponding to 50%, 100%, and 500% of full well will be taken. These saturation levels will be achieved through a combination of source selection and exposure times. This activity should be done with both point sources and extended saturating sources, but calculations are based on doing it only with point sources. At each of the three signal levels: (1) Observe a source using a small field dither pattern (1 cycle) and 10 second exposures. (2) Execute a flush cycle (reset,bias boost,more resets, anneal?) |
| Day: 76.7013888888905 | Suggested Order: R200 | ||
| Must be preceded by these activities (list by CAID): MIPS-320, MIPS-345 | |||
| Place in Schedule: After aperture cover is opened, SUR mode validated, CSMM validated, and MIPS has reached normal operating temperature. | |||
| Priority: Desired | |||
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: | 60 arcsec (1 sigma radial) | ||
| Maximum precision offset uncertainty: | 60 arcsec (1 sigma radial) | ||
| Observatory configuration: | standard | ||
| Go/No Go criteria: | CE power must be available. CSMM must work. MIPS must be at normal operating temperature. | ||
Duration: 50 minutes
| | Real time downlink:
No | | |||
| Data Volume (uncompressed): 40 Mbits | |||
| List Blocks, AORs, SERs, IERs, or unique sequences required (uplink): Uses photometry AOT and IERs for anneals and flush cycles | |||
| List Analysis tools required (downlink): Standard MIPS pipeline. Image analysis and photometry package | |||
| Estimate of data turn around: 48 hours | |||
| Description: After this test the consequences of observing very bright sources 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: Behavior of 24 micron latent images are characterized under mission conditions. | |||
| Contingency plan: If unusually large effects are observed, more detailed study of anneal/flush cycles will be needed. | |||
Comments | |||
| References: | |||
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Additional Comments:
Required Conditions: MIPS apertures must have been located. Detector aliveness and electronics checkouts must have been performed. The background must be less than 2e-7 W/m^2/sr. or T<31K Generates 42 DCEs (84 if done on extended source also) | |||
| This activity last updated: 4/19/2002 10:25:28 AM | |||