| IOC-MIPS_120a | 10190C,10590C | ||||||||
| Title: | Calibration of MIPS Stimulators Against Celestial Sources at 24um | ||||||||
| Objective: | Measure the output of the MIPS stimulators against the output of known stars. | ||||||||
| This template tests the stimulator response at 24um. Longer wavelengths done separately. | |||||||||
| Description: | Photometry mode data on a standard star will be collected interspersed with stim flashes | ||||||||
| recorded using a 24um stim flash IER. | |||||||||
| including flow / state diagram | |||||||||
| Stimulator calibration at 24um. | |||||||||
| 1) Observe the star using photometry mode with 3 second integrations and small field dither. | |||||||||
| 2) Observe the stimulator. | |||||||||
| 3) Repeat 1 and 2 five times. | |||||||||
| Place in Schedule: | After aperture door is opened. | ||||||||
| (relative to water shed events) | |||||||||
| Required Conditions: | MIPS detector aliveness tests must have been performed. | ||||||||
| MIPS aperture position must be known well enough to place a star in the FOV. | |||||||||
| Backgrounds must be less than the equivalent of 300,000 photons/sec: | |||||||||
| 24um test at | 3.6E-05 | W/m^2/sr | |||||||
| or T<43K | |||||||||
| These values are predicated on the 24um flood illuminator providing 250,000 photons/s at FPA | |||||||||
| Resources: | |||||||||
| duration (best estimate) | 30 min | ||||||||
| real time downlink (Y / N) | no | ||||||||
| special post event actions (Y / N) | no | ||||||||
| Part 1=16DCEs | Part 2=3DCEs | Total=5x(16+3)=95DCEs | |||||||
| Outcome: | |||||||||
| description | The conversion factor between instrument units and physical units will | ||||||||
| be available for stimulator observations. | |||||||||
| can proceed in parallel with other activity | no, requires dedicated pointing. | ||||||||
| must outcome be confirmed before next event / test /activity | no | ||||||||
| method of confirmation (sensor TLM, data analysis, etc.) | data analysis | ||||||||
| estimate of data turn around if required for confirmation | N/A | ||||||||
| Unique or included in planned AOT? | |||||||||
| Uses photometry AOT and IER for stimulator flashes. | |||||||||
| Contingency Plan: | |||||||||
| "What if..." | If the test fails, it must be repeated | ||||||||
| IOC Critical | Y | ||||||||
| References: | |||||||||
| Template last updated: | 9/6/99 | ||||||||
| M.Rieke | |||||||||