| IOC-MIPS_325a | 10740C,10830C,10840C,10850C,10860C | |||||||||
| Title: | MIPS Scan AOT Validation | |||||||||
| Objective: | Explore MIPS Scan AOT parameter space | |||||||||
| Description: | Execute MIPS Scan AOTs for all available selectable parameters, or a sensible range. | |||||||||
| Not all scan lengths need be tested -- do minimum, maximum, and several intermediate. | ||||||||||
| Can be the test same as: | Select final operational parameters | |||||||||
| Tune IPP file as needed | ||||||||||
| Several AORs will be constructed using each scan rate that will have : | ||||||||||
| 1) one forward and reverse minimum length scan legs for each of four available offsets (all scan rates) | ||||||||||
| 2) one forward and reverse maximum length scan legs for mimimum and maximum offsets (fast rate only) | ||||||||||
| 3) one X six forward and reverse medium length scan legs at two of four available offsets (fast rate only) | ||||||||||
| 4) do one instance of 1 for 3 cycles (slow rate only) | ||||||||||
| Place in Schedule: | After aperture door open | |||||||||
| After CTA/instrument cool down: | ||||||||||
| For 24um, the backgrd radiance must be less than 1.0E-11 W/cm2/sr (< 30K). | ||||||||||
| For 70um, the backgrd radiance must be less than 1.0E-12 W/cm2/sr (< 12 K). | ||||||||||
| For 160um, the backgrd radiance must be less than 5.4E-13 W/cm2/sr (< 6 K). | ||||||||||
| It may be possible to split this test into parts executed at different times based | ||||||||||
| on telescope temperature, but mapping in all three bands is optimal use of time. | ||||||||||
| Location of MIPS apertures must be completed. | ||||||||||
| Basic instrument commanding and functionality must have been confirmed. | ||||||||||
| After initial Scan AOT testing is complete. | ||||||||||
| Before final operational parameters are set and instrument tuning complete. | ||||||||||
| Required Conditions: | CTA and instrument at nominal operational temperature. | |||||||||
| PCS performance: | Absolute pointing 10 arcsecs | |||||||||
| Scan stability nominal | ||||||||||
| Offsetting nominal | ||||||||||
| Resources: | ||||||||||
| duration (best estimate) | 9.5 hrs | |||||||||
| real time downlink (Y / N) | No | |||||||||
| special post event actions (Y / N) | No | |||||||||
| Outcome: | ||||||||||
| description | Several scans at minimum, maximum, and intermediate lengths, each | |||||||||
| using all three scan rates. Also, several small maps of varying numbers of | ||||||||||
| legs, cross scan offsets, and map cycles. | ||||||||||
| can proceed in parallel with other activity | No, dedicated observing. | |||||||||
| 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 | 48 hrs | |||||||||
| Unique or included in planned uplink or downlink/analysis tool | Standard pipeline and data analysis tools. | |||||||||
| MIPS Scan AOT required | ||||||||||
| Contingency Plan: | Revisit uplink sequence/command expansion, or AOT design. | |||||||||
| "What if..." | ||||||||||
| IOC Critical | Yes | |||||||||
| References: | ||||||||||
| Template last updated: | 29-Aug-99 | |||||||||
| Template written by: | William B. Latter | |||||||||