latest update 13 June 2006

The GOES-N/O/P/(Q) series is built by the Boeing Satellite Systems (formerly Hughes Corp.)

The GOES-NOPQ contract is remarkable for being fixed-price, with delivery on-orbit, and with a warranty for one no-cost replacement satellite if something fails that is critical to the GOES mission.

On this series, the GOES-N/O/P Imagers will not have the 12-13 micron channel (a volcanic ash-sensitive channel which was converted to a cloud-sensing 12.9-13.8 micron channel on GOES-M). GOES-O/P will have improved 4 km resolution in the 13 micron channel.

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GOES-NOPQ delivery schedule

In January 1999, the handover dates for GOES-N and GOES-O were slipped by 6 months past the original contract dates, to save money for NOAA.

In 2002, with the previous spacecraft lasting longer than expected, NOAA decided to not exercise the option for GOES-Q, even though they have already purchased the corresponding Imager and Sounder from ITT.

By August 2003, the schedule for GOES-N had slipped about 2 years, with NOAA's approval.

By December 2003, the instruments were on the GOES-N/O spacecraft, and the N spacecraft was headed for thermal-vac testing.

By June 2006, GOES-N is just launched, GOES-O is in ground storage, and GOES-P is finishing thermal-vac testing.

The mid-2006 schedule is:

Satellite Readiness date Launch need date Planned launch date Actual launch date
GOES-N April 2004 December 2004 January 2005 May 2006
GOES-O April 2005 July 2007 September 2007 TBD
GOES-P April 2006 April 2008 October 2008 TBD

Instruments of Opportunity (IoO) - 1999

NOAA issued a call for Instruments of Opportunity proposals in October 1999.

However, NOAA did not take any action to procure additional instruments that would make GOES-NOPQ a more capable mission.

GOES-NOPQ Contract Procurement announcement - 1998

Allen Kenitzer
Goddard Space Flight Center, Greenbelt, MD 
(Phone:  301/286-2806)
Pat Viets
NOAA/National Environmental Satellite, Data, and Information 
Service, Suitland, MD
(Phone: 301/457-5005)
RELEASE: c98-b
     NASA and the National Oceanic and Atmospheric Administration
(NOAA) have awarded a $423 million contract to Hughes Space and 
Communications, El Segundo, CA, for the manufacture, launch and 
delivery on-orbit of up to four weather-monitoring Geostationary 
Operational Environmental Satellites (GOES).
     The procurement of the GOES-N through -Q spacecraft marks the
extension of this multi-satellite program designed to provide 
continuous monitoring of the Earth's weather systems and the 
related space environment.  The new spacecraft will be used to 
continue and enhance the functions of the current GOES I-M series 
of spacecraft.
     GOES spacecraft are a mainstay of modern weather forecasting,
providing meteorologists and hydrologists with visible and 
infrared images of weather systems, and precise atmospheric 
soundings. They orbit above the equator at a height of 22,238 
miles, stationed at 75 degrees west longitude and 135 degrees west 
longitude to provide broad views of the Atlantic and Pacific 
oceans where storms can be monitored while first forming.
     The basic contract value of $423.1 million provides for two
spacecraft, GOES-N and -O, at a fixed total price.  There are 
separate, fixed-price options for two additional spacecraft, GOES- 
P and -Q, priced at $190.9 million and $185 million, respectively.
     Along with these options, there are additional, separately
priced potential contract costs.  They include Government-directed 
task assignments;  additional integration and test support; changes 
to Government-furnished equipment deliveries; program- related 
launch vehicle changes; directed launch delays (due primarily to 
on-orbit satellites lasting longer than expected) and related 
spacecraft ground storage; and post-storage testing.
     The GOES program is a partnership between NOAA and NASA's
Goddard Space Flight Center, Greenbelt, MD.  NOAA is responsible 
for program management and budget, determining the technical 
requirements for the spacecraft, operating the spacecraft in orbit 
and disseminating the resulting data.  The NASA Goddard GOES 
project office is responsible for the acquisition of the 
spacecraft and oversight of the contract, and will support NOAA 
during the post-launch operations phase.
     The first spacecraft purchased under this contract will be
ready for launch in October 2001.  GOES N-Q will carry an Imager 
and a Sounder to provide regular measurements of Earth's 
atmosphere, cloud cover and land surfaces.  Two of them also will
carry a Solar X-ray Imager and Space Environment Monitor instruments.

Original GOES-NOPQ procurement schedule - 1998

Subject: GOES-NO/P/Q
Author:  Thomas.M.Wrublewski.1@gsfc.nasa.gov at EXTERNAL
Date:    1/28/98 5:53 PM

Today, Wednesday, January 28, 1998, it was announced that Hughes was 
selected for the GOES-NO/P/Q contract.
Listed below is preliminary planning information for your use, if needed, 
and a copy of the press release.
Contractual Engineering Handover Dates:
                              GOES-N            October 31, 2001
                              GOES-O              April 30, 2003
If option exercised           GOES-P              April 30, 2006
If option exercised           GOES-Q              April 30, 2008
Planning Purposes Milestones:
Contract Award to Panametrics for SEM Instruments                 March 4, 1998
GOES-N/O Flight Software Conceptual Design (SWCR)                 March 5, 1998
EDDS (electronic data transfer system) Critical Design review    March 31, 1998
GOES-N/O System Concept Review (SCR)                                May 5, 1998
GOES-N/O Flight Software Requirements Review (SWRR)                 May 7, 1998
Spacecraft Support Ground System (SSGS) Concept Review (SCR)        May 7, 1998
Spacecraft Support Ground System (SSGS) PDR                       July 31, 1998
GOES-N/O Preliminary Design Review (PDR)                        August 13, 1998
Spacecraft Emulator and Performance Evaluation System PDR      November 3, 1998
Deliver SXI to GOES-N Mechanical Interface                      January 8, 1999
GTACS Proof-of-Concept Demonstration                          February 15, 1999
Communications Subsystem CDR                                     March 10, 1999
Spacecraft Support Ground System (SSGS) CDR                       April 9, 1999
GOES-N/O Critical Design Review (CDR)                              May 13, 1999
Delivery of Imager/Sounder S/C Emulator Elements                  June 17, 1999
Performance Evaluation System (PES) Delivery                      July 30, 1999
Flight Software Test Readiness Review (SWTRR)                   August 17, 1999
Flight Software Acceptance Review (SWAR)                       October 14, 1999
Spacecraft Support Ground System (SSGS) Pre-Shipment Review      March 14, 2000
Deliver Ground System to SOCC and CDAs                           March 23, 2000
GOES-N Mission Operation Review (MOR)                              May 12, 2000
GOES-N End-to-end Test 1A Completed                               June 23, 2000
GOES-N Pre-Environmental Testing Review (PER)                September 19, 2000
Flight Operations Training Program Completed                    October 4, 2000
GOES-N End-to-End Test 2 Completed                             January 26, 2001

Final INR System Description and Analysis Document Delivered     April 27, 2001
GOES-N Pre-Shipment Review (PSR)                                   May 21, 2001
GOES-N Flight Operations Review (FOR)                              June 6, 2001
GOES-N External Independent Readiness Review (EIRR)             August 15, 2001
GOES-N Dress Rehearsal                                       September 14, 2001
GOES-N Mission Readiness Review (MRR)                        September 10, 2001
GOES-N Spacecraft Launch Readiness Review (LRR)                 October 5, 2001
GOES-N Spacecraft Engineering Handover                         October 31, 2001
GOES-N Final On-orbit Acceptance                                 April 30, 2002
Spacecraft Support Ground System (SSGS) Final Acceptance Review    July 2, 2002

Original GOES-NO/PQ Procurement Plans - 1997

Date: Sat, 18 Jan 1997 13:11:42 -0500 (EST)

Two spacecraft to be competitively procured with options for one plus one.

Firm fixed price contract.

Imager & Sounder being sole source procured from ITT on CPAF/IF contract (all fee provisional) and to be GFE to the spacecraft.

Solar X-Ray Imager to be competitively procured GFE, also capable of flying on warranty spacecraft, and will be procured under a contract with cost incentives and provisional award fee. SXI has a 3 year design life requirement with a goal of 5 years. GOES mission life met with 2-satellite redundancy -- 1 SXI operational coverage requirement.

Lightning Mapper (LM) will be a new instrument of opportunity capability.

Phase-B studies are underway for a Double Rate Imager (DRI), addition of a 6th channel to the Imager, and a Geosynchronous High-Resolution Interferometer Sounder (GHIS) that can be achieved by interferometer in place of the existing Sounder filter wheel.

GOES-NO/PQ will include the growth capability to add LM, DRI, and GHIS.

Launch vehicle selection can include many possibilities for ELV (such as Atlas IIA or Delta 3) and variations that might include delivery to orbit without the usual NASA/NOAA involvement. GFE of launch services is also a possibility.

The ground system is required to support the GOES-I thru M spacecraft operations as well as NO/PQ. Existing ground systems can be modified and/or entire new ground systems proposed. The Government reserves the right to separately procure any or all hardware and software for the Ground system if that is the best value to the Government. Ground system changes, including modifications to existing equipment/software, are the responsibility of the spacecraft contractor.

The Space Environment Monitoring will include several improvements in particle sensing capabilities (to be presented by Dr. Howard Singer of NOAA-SEC). SEM instruments included in the S/C contract.

The Emergency Managers' Weather Information Network (EMWIN) is a relatively new service that has significant NWS and NESDIS support for improvement. Cy Settles, from Wallops CDA, is formulating and coordinating with the NWS the details of the desired improvements.

Data Collection System WEFAX and Search & Rescue 406 MHz services are retained.

Spacecraft and prime instruments must operate through eclipse. No interruption to instrument operation, except during applicable keep out zones.

Launch Planning
Readiness Launch
Imager/Sounder SXIDate Date
GOES-N12/1999 5/2000 4/2001 4/2002
GOES-O4/2001 4/20024/2003 4/2005
GOES-P4/2004 4/20054/2006 4/2007
GOES-Q7/2006 4/20074/2008 4/2010

Initial GOES-NO/PQ Procurement Schedule Goals - 1997

Industry Capability Statements and Comments to RFP Draft Requirements, Received 1/15/97

Definitize Imager & Sounder Contract with ITT by February 1997

Release S/C RFP Business Sections for Industry Comment in Feb.

Conduct Industry Discussions in Jan./Feb.

Complete SXI Proposal Evaluations by April with contract award in May

Release S/C RFP in April (45-60 days for proposal receipt)

GOES-NO/PQ Contract Award October 1997

Changes in the Imager and Sounder for GOES-NO/PQ - 1997

Direct contract with NASA/GSFC and all fee is provisional to on orbit performance.

NEDN improvements (see attachment).

Imager spectral tolerances modified IAW science committee specifications and NOAA CCB (see attachment).

Additional detectors to be purchased to improve likelihood of achieving improved MTF and IGFOV.

Cooler finish improvement expected to provide a small improvement in efficiency and detector performance. Other JCSat efficiencies.

Increased emphasis on coregistration and meeting specifications.

Re-Engineered Test Program will reduce test time and cost.

Prototype S/N 01 Sounder and S/N 02 Imager instruments available for loan to serious potential S/C vendors to conduct tests to verify their understanding of the instrument interface and to demonstrate compatibility with other spacecraft at no cost to the Government.

Why Compete the GOES-NOPQ Spacecraft Procurement? - 1997

Present bus not meeting INR specifications.

Parts obsolescence precludes ability to buy more of the same.

Lower price and better Government negotiation position.

Low cost opportunity to enhance ground operations and reduce life cycle costs.

Greater power capability will allow additional operations during eclipse.

New S/C will have more growth capability for future upgrades.

No valid JOFOC rationale ... i.e. not authorized or required by statute; no unusual and compelling urgency; more than one responsible source.

Industry is capable and interested.

OMB and joint Congressional committee encouraged competition.

Goals from NWS GOES Requirements - 1 April 1983

"The satellite design must facilitate the inclusion of a new (additional) instrument ... because the sounding technology available for launch in 1990 cannot meet all of the basic NWS goals."

Requirement to provide short term forecasting information at the local and regional level requires:

-- higher horizontal resolution

-- flexibility to select the area of interest

-- more spectral channels

-- rapid and more frequent data delivery

-- high reliability

-- flexibility for growth, development and research

"The design for the GOES-NEXT system must minimize the conflict between large and small scale applications of the GOES imagery, i.e., the acquisition of full disk and U.S. image sectors."

"The visible imagery must have a nadir resolution of at least 1 km." and "a spatial resolution for sounding measurement of IFOV < 10 km X 10 km."

"Navigation accuracy of the GOES-NEXT imagery information should, in an absolute sense, be no more than 2km. Picture to picture relative accuracy of one-half of a field of view over four consecutive images is required."

"Channel to channel misregistration should not exceed one-tenth of a field of view."

"A simple statement of the desired accuracy of temperature and moisture soundings from GOES might be to request no more than about a +0.5 deg error in temperature, and good reproduction of the vertical detail that is often present in the lower troposphere and considered to be important in forecasting convective outbreaks."

PROCUREMENT DELARATION: GOES-NO/PQ is intended to take a low risk cost effective evolutionary step closer to achieving the previously stated NWS goals and will advance NOAA's space weather monitoring capabilities.

mail icon NASA Official: Dennis.Chesters@nasa.gov

GOES Project