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: http://www.stsci.edu/spst/lrpg/documentation/procedures/lrpg_orbit_accounting.html
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Orbit accounting is necessary to determine when Cycle boundaries occur as well as analyze when SAA-free and SAA-friendly pools will be exhausted. Currently (00-05-22) no single tool is used to provide orbit accounting information. Some information is derived from OPM tools, auxillary SQL reports, and division memoranda.
Several different types of orbit accounting may need to be done at various times. When making recommendations on available orbits to the TAC, slightly different numbers must be provided than when trying to determine the current cycle-end boundary. Below, we will see the difference in action.
First, some definitions:
This link is to a PDF showing the results of the pre-TAC Cycle 11 orbit accounting.
What follows is an example of orbit accounting, with a source of the data, done during the 3rd week of May, 2000.
Type | Total Orbits | MAMA or other Exclusive SAA-free consumer Orbits | Source of Data |
---|---|---|---|
Proposals in the LRP | |||
Previous Cycles in LRP | 141 | 58 | OPM/Remaining SUs w/ PWs |
Current Cycle in LRP | 1180 | 593 | OPM/Remaining SUs w/ PWs |
New Cycle in LRP | 2322 | 893 | OPM/Remaining SUs w/ PWs |
Targets of Opportunity | |||
ToO Previous Cycles | 0 | 0 | query of ToO props: Orbits executed plus Planned. |
ToO Current Cycles | 30 | ?? | query of ToO props: Orbits executed plus Planned. |
ToO new Cycle | 43 | ?? | query of ToO props: Orbits executed plus Planned. |
3716 orbits; 1544 orbits MAMA
Type | Total Orbits | MAMA or other Exclusive SAA-free consumer Orbits | Source of Data |
---|---|---|---|
Proposals in the LRP ("In-Plan") | |||
Previous Cycles, in LRP | 23 | 11 | OPM/Remaining SUs without PWs, but in LRP. |
Current Cycle, in LRP | 48 | 24 | OPM/Remaining SUs without PWs, but in LRP. |
New Cycle, in LRP | 175 | 25 | OPM/Remaining SUs without PWs, but in LRP. |
Proposals NOT in the LRP ("Not In-Plan") | |||
Previous Cycles, not in LRP | 0 | 0 | OPM/Remaining SUs, not in LRP. |
Current Cycle, not in LRP | 49 | 6 | OPM/Remaining SUs, not in LRP. |
New Cycle, not in LRP | 150 | 16 | OPM/Remaining SUs, not in LRP. |
DD Time | |||
Current Cycle DDs Expected | 0 | 0 | Value in Memorandum from HOD Head minus Executed minus those w/ PWs |
New Cycle's DDs Expected | 282 | 140 | Value in Memorandum from HOD Head minus Executed minus those w/ PWs |
Targets of Opportunity | |||
Current Cycle ToOs | 0 | 0 | ToO Props prop_track allocation minus executed minus those with PWs. |
New Cycle ToOs | 310 | 158 | ToO Props prop_track allocation minus executed minus those with PWs. |
Cycle Calibrations, Engineering & pre-SMOV | |||
WFPC Calibrations | 67 | 0 | Total from WFPC Team minus those In-Plan |
STIS Calibrations | 77 | 31 | Total from STIS Team minus those In-Plan |
FGS Calibrations | 24 | 0 | Total from FGS Team minus those In-Plan |
FOC Calibrations | 0 | 0 | Total from FOC Team minus those In-Plan |
Pre-SMOV and Other Eng | ??? | ??? | Head of the SM Team/Office |
Other Windowless Items | |||
HOPRs | 150 | 75 | 3% of the Unexecuted Planned and Unplanned Visits. |
1355 orbits; 486 orbits MAMA
Type | Total Orbits | MAMA or other Exclusive SAA-free consumer Orbits | Source of Data |
---|---|---|---|
Pre-Allocated Future Cycle Multi-Cycle Proposals | 184 | ??? | Memo from HOD Head |
SMOV Estimates | ??? | ??? | SMOV Team |
Calibrations | X% of Available Time. | Y% of Available Time. | Similar %ages to previous cycles; Sanity Check with Instrument Leads. |
DD Time | Z% of Available Time | Analysis of DD Time Allocation. | Similar %ages to previous cycles; Sanity Check with DO. |
Future Cycle HOPRs | N% of Available Time. | N% of Available Time. | Analysis of HOPR Rate. |
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