E23

1
E-2-3

• NPOESS Spacecraft Interfaces

2
Spacecraft Interfaces

• NPOESS designing to accommodate existing
  POES-designed A-DCS
• Exploring with CNES specification modifications
  where existing S/C requirement is POES-unique and
  of
• little or no consequence to CNES

3
Spacecraft Interfaces (cont.)

• May 9, 2006 several documents put on eRoom for
  CNES review
• - Draft updated ADCS ICD
• - Spreadsheet listing TBXs remaining in ICD,
  suggested dates, and responsibilities for
  their resolution
• - A "Read me" file which lists the remaining
  issues planned for future
• - D34641 Rev B.doc, Rev. B of Sensor Simulator
  Specification
• - A-DCS SARP Reqts compliance.xls, a
  spreadsheet listing differences between Rev.
  A and Rev. B of D34641
• - ICD Between the Flight Vehicle Simulator
  ADCS Simulator
• NGST would appreciate CNES review of updated ICDs
  and their TBX tables at CNES earliest
  convenience, preferably by early July