GOES-R Spacecraft Overview

The GOES-R spacecraft bus will be three-axis stabilized and designed for 10 years of on-orbit operation preceded by up to five years of on-orbit storage. The satellite will be able to operate through periodic station-keeping and momentum adjust maneuvers, which will allow for near-continuous instrument observations. Other notable performance elements include:  vibration isolation for the Earth-pointed optical bench and high-speed spacecraft-to-instrument interfaces designed to maximize science data collection. The cumulative time that GOES-R science data collection (including imaging) will be interrupted due to all momentum management, station-keeping, and yaw flip maneuvers will be under 120 minutes/year. This is a nearly two orders of magnitude improvement compared to the current GOES satellites. The spacecraft will carry three classifications of instruments:  nadir-pointing, solar-pointing, and in-situ.

The satellite driving requirements are:

  • Spacecraft on-orbit life of 15 years with orbit East-West and North-South position maintained to within +/-0.1 degree
  • Collect and transmit up to 100Mbps instrument payload data from each location continuously
  • Continuous rebroadcast function at L-Band up to 31 Mbps utilizing dual polarization
  • Provide continuing services [Search and Rescue, Data System Collection, Emergency Manager’s Weather Information Network (EMWIN)]

Spacecraft Specifications:

  • 6.1 m x 5.6 m x 3.9 m (20.0 ft x 18.4 ft x 12.8 ft)
  • 2,850 kg (6,283 lbs) dry mass
  • 5,195 kg (11,453 lbs) at launch (wet mass)

Spacecraft Status

  • August 22, 2016: GOES-R arrived at Kennedy Space Center
  • July 2016: GOES-R Pre-Shipment Review complete
  • July 2016: All environmental, mechanical and electromagnetic testing is complete
  • January 2015: All GOES-R instruments integrated with the spacecraft
  • September 2014: System Module and Core Module successfully mated
  • April 2014: System Module delivered to Lockheed Martin, Denver
  • March 2014: Propulsion Core Module delivered to Lockheed Martin, Denver

 

Prime Contractor   -   Lockheed Martin Space Systems Corporation