E11

1
E-1-1

• NPOESS Program and Spacecraft

2
NPOESS Spacecraft Status

• NPOESS supports the 1330 and 1730 orbit planes
• Spacecraft working to A-DCS/spacecraft ICD
  IF31-0033 Rev B (soon to be Rev C)
• Technical interchange meeting with CNES held July
  9-11, 2008
• Spacecraft subsystem reviews Dec 2008 - Feb
  2009
• Spacecraft Critical Design Review April 2009

3
Launch dates

• Initial order for two satellites,
• - option for additional two to be exercised in
  2010
• Planned launch dates C1 Mar 2014 1330 orbit
• C2 May 2016 1730 orbit
• C3 2020 1330 orbit
• C4 2022 1730 orbit
• launch date tentative.
• Launch readiness dates 1/2018 1/2020 for C3
  and C4
• Program runs through 2026 (provide data through
  2026)

4
Review/Delivery Status

• NGAS spacecraft design reviews in the December
  2008-February 2009 time frame
• NPOESS CDR April 2009
• CNES instrument PDR held February 2009
• CNES review of interfaces planned for September
  or October 2009
• Since spacecraft is already past CDR, will be
  important to keep in close contact to ensure
  information exchange is kept up-to-date
• need dates vs availability dates for A-DCS
  instrument being worked between NGAS/IPO and CNES
  as part of giver-receiver list discussion
• All dates need to be revisited based on C1 launch
  movement from 2013 to 2014

5
NPOESS Contacts June 2009

• IPO Systems lead Benjie Spencer
  Benjie.Spencer_at_noaa.gov
• IPO A-DCS instrument Mike Cummings
• Michael.Cummings_at_noaa.gov
• NGAS A-DCS Brian Norden Brian.Norden_at_ngc.com
• (NGAS) SI Stephanie Moore smmoore_at_raytheon.com
  
• SISystems Integration (responsible for ground
  interface control documents).

6
Ground Interfaces

• Ground-to-ground ICD exists and has been signed
  by all parties.
• Document D34652 NPOESS to Advanced Data
  Collection System Interface Control document
• Dated August 11, 2006 (revision A)
• Revisions for a Rev B reviewed by CNES in 2008.
  Release of Rev B on hold pending NGAS resolution
  of IPO comments received during Critical Design
  Audit

7
Spacecraft Interfaces

• IF31-0033 ICD for the Advanced Data Collection
  and Location System (A-DCS) released and signed
  by all parties
• IF31-0033 currently at Revision B, dated January
  28, 2008
• July 2008, Technical Interface Meeting held among
  CNES, NGAS and IPO to discuss A-DCS details
• Changes to create Revision C in change review
  board
• ICD will be revised periodically for
  missing/incomplete information, as the
  information becomes available
• Technical interface meeting among CNES, IPO and
  NGAS planned for September or October, 2009

8
OPSCOM 42 Action

• 42-12-N
• NOAA to provide an update on the LRD
  specification and SafetyNet development.
• Action C. OConnors, M. Cummings, June 2009
• Response - See following pages

9
LRD Characteristics
10
SafetyNet Sites

• Next chart shows schedule for SafetyNet site
  readiness
• McMurdo, Svalbard and Orlando (Florida)
  considered launch-critical for NPOESS C1
• 5 additional sites planned to be ready by C1
  launch
• Remaining sites to be ready by C2 launch

11
SafetyNet Sites