“C” Mission Clean Up

See list attachedJUL 10 196868-PA-T-154APA/Chief, Apollo Data Priority Coordination“C” Mission Clean Up

We'll try to clean up the rest of the “C” mission open items at a meeting on Friday, July 19, in Room 2032B of Building 30. Retrofire and Reentry will be discussed in the morning, starting at 9 a.m., and Rendezvous in the afternoon – or as soon as we finish the Retrofire session. Attached are open item lists for each session, kindly prepared by Stu Davis, FCD.

Enclosure 1

DEORBIT AND ENTRY DATA PRIORITY MEETING ITEMS

1. Is the entry following an RCS deorbit to be ballistic or guided?

2. Will the ENS be used for G&N failure occurring at any time?

3. Is closed loop G&N entry to be the nominal?

4. What are the thrust vector magnitudes and directions for SM – CM RCS deorbit ΔV's?

5. Is a fine align or coarse align sufficient for deorbit?

6. Are crew using ADPC procedures?

7. What are DSKY VG and gimbal angle limits in comparison with ground maneuver pad?

8. What are 3σ BMAG drifts?

9. What are PIPA bias and gyro drift limits and the compensation procedure?

10. Are the pads current?

11. What is the new REFSMMAT flag setting procedure?

12. Is the G&N needed for hybrid deorbit?

Enclosure 2

RENDEZVOUS DATA PRIORITY MEETING ITEMS

Open Items:

1. Trim NCC1 to keep from doing NCC2. Ken Young

2. Rendezvous with SCS if G&N fails anywhere prior to to NSR. Phil Shaffer

3. Δh limits for terminal phase. Ed Lineberry

4. Lighting constraints for TPI hard or is elevation angle hard? Flight Crew

5. Is 27.45° the elevation angle for TPI? Paul Kramer

6. Are P-52 alignment completion necessary prior to NCC1? FDB and FCSB

7. Are the maneuver pads current? Will Presley

8. Limits on onboard TPI solution comparisons with ground TPI. Ed Lineberry

9. Discussion of backup TPI ΔT burn solutions (duty cycle problems). Dick Moore

10. Are crew using ADPC procedures? Flight Crew

11. Limit on DSKY VG's agreement with target load, and limit on gimbal angles comparisons with maneuver pad. MIT

12. Residual reasonableness limit G&PB

13. What are allowable BMAG drift and gyro torquing angles. Gary Coen

14. What are crew time requirements for sextant star check, P-52, P-40? Mosel

15. What are PIPA bias and gyro drift limits and compensa- tion procedures? Gary Coen

16. Should NC1 and NC2 be external ΔV or SCS targeted? Stewart Davis

17. What are 3σ BMAG DRIFTS? NR

18. What short burn logic will be programmed for RTCC? Phil Shaffer

19. Any corrections to Techniques Description document.