GORWG Charter

Download the GORWG Charter              Updated April 2020             (on Google Drive)


The Geostationary earth-orbiting satellite Operational Requirements Working Group (GORWG) is established by the NOAA Observing System Council (NOSC) to represent NOAA users and to identify and advocate for their observational requirements regarding NOAA and Non-NOAA geostationary and extended orbits, [Referred to “geostationary satellite observational requirements” within this document]. Primary functions of the GORWG are to:

  • Serve as the primary focal point for all geostationary satellite observational requirements.

  • Develop NOAA inputs to the appropriate satellite systems’ requirements documents and coordinate them within NOAA

  • Prepare user impact assessments responding to geostationary satellite technical and programmatic changes that could impact NOAA Line Office requirement satisfaction

  • Review and recommend changes to geostationary satellites Requirements Documents


  • Chair:

    • The GEO Senior Scientist will chair the GORWG

  • Executive Secretariat

    • Voting Members: Chair and a representative from each NOAA Line Office (NWS, NESDIS, NOS, OAR and NMFS)

    • Advisors (non-Voting): A representative from NESDIS Program Office will be retained in an advisory capacity as needed.

    • Ad-hoc Subject Matter Experts (attend meetings as needed)

Roles, Responsibilities, and Interactions with NOAA Councils and Groups

The NOAA Executive Council (NEC) is the highest body.  Under the NEC is the NOAA Executive Panel (NEP).  Under the NEP is the NOAA Observing Systems Council (NOSC).  Under the NOSC are three supporting groups.  The first is the Environmental Data Management Committee (EDMC).  The second is the Satellite Requirements Working Groups, which includes the LORWG and the GORWG.  The third is the Observing System Committe (OSC).

    • Serves as the NOAA program observational requirements identification body for the geostationary satellites and satellites located beyond GEO orbit, including those managed by the Space Weather Follow On (SWFO) program

    • Develops and sustains geostationary earth-orbiting system’s requirements documents and coordinates them within NOAA

    • Prepares user requirement satisfaction assessments in response to proposed program changes that could impact system requirements.

    • Prepares user requirement satisfaction assessments and recommendations for the NOSC in response to major program decision phases.

    • Prepares user impact assessments for anomalies for the NOSC during the Operations Phases of the appropriate geostationary satellite programs.

    • Provides input on product prioritization for enhancements and future capabibilities.

    • Provides input as needed to the Satellite Products and Services Review Board (SPSRB) to assist in project planning and execution.

  • NOAA Observing Systems Council (NOSC)

    • Serves as the program requirements validation process review body in its role as the principal advisory body to the Under Secretary for NOAA’s Earth observation and environmental observation-related data management (end-to-end collection, processing, storage, archiving, accessing, and disseminating) activities

    • Serves as the parent body of the GORWG providing routine oversight of GORWG activities

    • Reviews and recommends for approval, Level 1 documents to the higher authority

    • Tasks the GORWG to assess requirements-related issues

    • Review GORWG user requirements satisfaction assessments

    • Reviews Management Control Program Implementation Changes if those changes deemed to significantly impact users

  • GOES-R Program Office (GPO), NOAA and Non-NOAA Geostationary Satellite Program Managers

    • Serves as the program execution body, responsible for geostationary technology and programmatic planning, systems engineering, pre-acquisition, acquisition development, Operations and Maintenance (O&M), decommissioning, and disposal

    • Provides programmatic alternatives identified to the GORWG and NOSC for user requirements satisfaction assessments

    • Provides program change direction recommendations during the Acquisition Phase to the GORWG and NOSC for user requirement satisfaction assessments

    • Develops and maintains the Level 1 and other requirement documents as needed, in coordination with the GORWG

Meeting Frequency

Meetings are held as often as necessary, with a minimum meeting frequency being on a quarterly basis.

Decision Making Process

The goal is to achieve consensus among all the voting members. The Chair retains 51% of the vote in developing GORWG recommendations. All dissenting positions will be documented.

Terms of the Charter

This Charter will be revisited annually and updated as necessary to ensure the effort is aligned with program and organizational priorities