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8  
  
24 Nov 81

Project No.________
Book No.________
TITLE STS-6/IUS handover brief 
      
From Page No.___

IUS/TDRS cont'd         GOWG notes 

● MOTSCO owns s/c in VPF; astro/VITT role understood & welcomed by MDTSCO (USAF heard it). 

● Baseline uses fet panels in VPF & OPF - sched. constraints.  

● S/C prop ; 1500* MMH loaded in RSS

● OMRSD; max 24 hrs from batt. chg to launch 29+48+4 deploys
Gives 4 deploy opportunities or survival of 48 hr launch scrub.
VO folks say absolute closest they could get charging is L-40 HRS. 

● 24HR scrub capability may be in place by this time ( LPS so (Aware mod)

- Does IUS/TDRS fall in CDDT?  i.e. where in count does S0017 begin & is P/L activity happening then? 
Maybe should ensure IUS says get exercised by starting S0017 early (e.g. dragging their cables off tower etc)

- Who'se C/O H/W used to verify PCP/CIU at QPF? 
Boeing & RI both have gear but disagree as to each other's suitability.
Boeing test gear used in VPF.

● Spacecraft concerns:  
- 90 days vs 64 days in flow - contractors budgeted for 64.
- 5 day turnaround to do battery recharge
- Spacecom wants CDDT deleted, dead time removed to get back to 64 day flow. Could supply extra PCP/CIU to help.

- Prelim OMRSD reqmts in work @ Boeing past 3 weeks for PTV. 
Nov/Dev input to JSC 

To Page No._______

Witnessed & Understood by me, ________________
Date __________
Invented by ____________
Recorded by ____________
Date _______
         

Transcription Notes:
---------- Reopened for Editing 2023-03-29 14:18:26 ---------- Reopened for Editing 2023-03-29 15:04:15 ---------- Reopened for Editing 2023-03-29 17:50:09