| IOC-MIPS_350a | 10190C,10590C | |||||||
| Title: | Calibration of MIPS Stimulators Against Celestial Sources at 70 and 160 um | |||||||
| Objective: | Measure the output of the MIPS stimulators against the output of known stars. | |||||||
| Description: | Scan maps will be made of standard stars with stimulator flashes interspersed. | |||||||
| including flow / state diagram | ||||||||
| Stimulator calibration at 70 and 160um | ||||||||
| 1)Make a scan map where a standard star is observed in both forward and | ||||||||
| reverse scan directions using medium scan speed. Use 3 second exposures. | ||||||||
| A scan will be 30' in length so that 2 stim flashes should be recorded in a given direction. | ||||||||
| 2) Repeat 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. | |||||||
| Must be able to place a star in the width of a scan (5'). | ||||||||
| Backgrounds must be less than the equivalent of 200,000 photons/sec at 160um: | ||||||||
| 160um <= | 1.10E-07 | W/m^2/sr | ||||||
| or T<7.4K | ||||||||
| Resources: | ||||||||
| duration (best estimate) | 1.5hrs | |||||||
| real time downlink (Y / N) | no | |||||||
| special post event actions (Y / N) | no | |||||||
| One forward/back scan genreates 344 DCEs between the two arrays. | ||||||||
| A total of 1720 DCEs are generated in the complete test. | ||||||||
| 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 scan map AOT. | ||||||||
| Contingency Plan: | ||||||||
| "What if..." | If the test fails, it must be repeated | |||||||
| IOC Critical | Y | |||||||
| References: | ||||||||
| Template last updated: | 9/5/99 | |||||||
| M. Rieke | ||||||||