GOES Advanced Instrument & Spacecraft Acquisition Strategies

1. GOES Advanced Instrument & Spacecraft Acquisition Strategies Presented to the GOES Users Conference Boulder, CO May 22-24, 2001 Del Jenstrom NASA/GSFC

2. Time Frame • GOES I-M (1994 - 2001 launch ready) • Loral spacecraft bus • ITT imager and sounder • GOES N-Q (2003 - 2008 launch ready) • Boeing spacecraft bus • ITT imager and sounder • GOES R-U? (2008 - .... launch ready) • New spacecraft bus • New imager (ABI) and sounder (ABS)

3. GOES-R Series Requirements • Formal mission requirements under development by NOAA • Four NOAA/NASA working groups • Mission Requirements and Operations Concept • Communications and Data Distribution • Operations Architecture • Auxiliary Services • Interim direction • GOES-R launch ready in 2008 • ABI & ABS • NOAA Technical Requirements Documents (TRDs) issued for both • Other instrument/capability requirements • TBD

4. ABI and ABS Requirements • Advanced Baseline Imager (Released by NOAA February 2000) • Advanced Baseline Sounder (Released by NOAA December 2000)

5. CY 94 CY 95 CY 96 CY 97 CY 98 CY 99 CY 00 CY 01 CY 02 CY 03 CY 04 CY 05 CY 06 CY 07 CY 08 CY 09 CY 10 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Wheel Tach control failure, One Damaged AOCE GOES-8 Failing Momentum Wheels, Not Viable as a long term spare GOES-9 Working Nominally, Solar Array running in reverse GOES-10 In Storage On-Orbit Will Replace GOES-8 Someday GOES-11 GOES-M GOES-N GOES-O ITT Inst Opt Date Spacecraft Opt Date GOES-P (Opt) ITT Inst Opt Date Spacecraft Opt Date GOES-Q (Opt) ABI Study Implementation ABS Study Implementation GOES-R S/C Study Implementation Study Launch Readiness Date Actual / Planned Launch Date Actual Operational Use Nominal Operational Use GOES Program Schedule

6. GOES-R Development Plan for 2008 Readiness • Set GOES-R readiness in 2008 (same readiness time frame as GOES-Q) • Do not buy the GOES-Q spacecraft unless GOES-R 2008 readiness in doubt • Decision milestone in 2005 • Buy the ITT GOES-Q instruments • To be used in case GOES-Q spacecraft option exercised • Provides warranty instruments in case of GOES N/O/P launch failure • Target both ABI &ABS for GOES-R and subsequent sats • ABI and ABS procured independently • Procured directly by NASA for each mission and provided to spacecraft vendor • Instrument builder also provides some low-level science data processing algorithms • New competitive spacecraft procurement for GOES-R Series • Mission integrator, including cmd/ctrl, INR, & science data processing ground systems

7. GOES-R Development Plan Calendar Years 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 Boeing/ITT GOES-Q Option Nominal GOES-R Readiness Nominal GOES-S Readiness GOES-Q Readiness GOES-Q ITT Instruments GOES-R Launch Ready GOES-S Launch Ready Arch. Studies S/C Prep Proc. Formulation Procure Implementation I&T Payload Accom. Study Study ABI Eng. Model Formulation Procure Implementation RFI Eng. Model ABS Proc. Formulation Procure Implementation Design/Tech. MCR NASA NMP GIFTS Sensor Development S/C Development PDR CDR Launch

8. GOES-R Series Mission Development Status • Mission Requirements Under Development by NOAA/NASA Working Groups • Draft of requirements due in June to support spacecraft mission-level formulation study RFP development • Awarded 6-month Payload Accommodation Study contracts to 5 spacecraft vendors in March, 2001 • Investigate ability to host perceived GOES-R payload • How big/heavy/power hungry can ABI & ABS get before costs escalate? • What are impacts of various communications options on cost and ability to host ABI and ABS? • What is cost/risk/payload impact of 1-wing vs. 2-wing bus design? • Mid-term reviews planned for late June • Planning to issue spacecraft mission-level formulation study RFP in January, 2002 • Multiple awards for competitive 1-year studies

9. ABI Development Status • Competitive ABI Formulation/Implementation • Formulation • Competitive studies at 3 vendors awarded in May, 2001 • Ball, ITT, Raytheon SBRS • 18 months duration • First 6 months: Cost/Performance/Risk requirements trade studies to finalize formulation study requirements • No. channels, spatial res., keep out zones, rapid local region scanning, standard I/F, data rate, goal vs. threshold performance, etc. • Refined requirements issued to vendors • Final 12 months: Design development, risk mitigation • Implementation • Open competition for implementation contract

10. ABS Development Status • Competitive ABS Formulation/Implementation • Formulation • Procurement plan for ABS currently in state of flux • Relationship to NASA NMP GIFTS project developing • Draft of ABS performance specification to be released in June 2001 • Based on NOAA ABS TRD received in December, 2000 • Evaluating readiness of GIFTS technology for ABS and potential benefits to ABS • ABS formulation contracts will include trade studies to evaluate increased performance vs. cost and risk • Several science-driven requirements under review by NOAA • 3 spectral bands vs. 2 bands (GIFTS approach) • LW coverage: 650-1200 cm-1 or 685-1130 cm-1 • Absolute error in geo location: 2 km or 4 km • Targeting Fall 2001 for release of Formulation Phase RFP • Implementation • Open competition for implementation contract

11. Summary • Plans for procurement of GOES-R series firming up • Level of activity ramping up quickly • 3 ABI Formulation Study contracts awarded • 5 Payload Accommodation Study contracts awarded • ABS and Spacecraft Formulation Study RFP’s to be released within 9 months • Level-1 mission requirements in development • Draft due from NOAA in June • Final due within ~1 year • Major architecture options being actively explored • Key decisions will be made within 1 year Even though GOES-R launch readiness is 7 years away, we’re moving out and there is no time to waste