NOAA Office of Satellite and Product Operations
GOES Transition

GOES-R Satellite Series Transition to Operations

GOES-R launched on November 19, 2016 and along with GOES-S (2018) will extend the availability of the operational GOES satellite system through 2036. When the GOES-R satellite reached geostationary orbit on November 29, 2016, it was renamed GOES-16.

On May 25, 2017, NOAA announced GOES-16’s operational location as GOES-East. The GOES-East position was chosen primarily because it offers full coverage of the continental United States and provides optimal viewing of the states and cities in the Plains, Midwest and East most impacted by severe weather events including Atlantic Hurricanes, thunderstorms and tornadoes, major winter storms, and flooding.

GOES-16 began drifting to the GOES-East operational location of 75.2 degrees west longitude on November 30, 2017. Drift was complete on December 11, 2017, and nominal operations resumed on December 18, 2017 when the satellite was declared GOES-East.

The old GOES-East (GOES-13) continued to produce products distributed through GOES-14 (Standby) from December 7, 2017 until it turned off on January 8, 2018.

GOES-S was launched March 1, 2018. GOES-17 began drifting to its GOES-West operational location of 137.2 degrees west longitude on October 24, 2018. Drift was completed on November 13, 2018 and nominal operations resumed on November 15, 2018. The satellite became GOES-West on February 12, 2019. The change from 137.0 to 137.2 has been made for operational efficiency and to minimize impacts from other geostationary satellites.

GOES-T was launched on March 1, 2022. GOES-18 held a two-part PLT with the first part at 89.5 degrees west longitude and the second part at 136.8 degrees west longitude starting on June 7, 2022. In preparation for its eventual transition to operations, GOES-18's orbit was slowly nudged to 137.0 degrees west longitude from July 5-21, 2022. At the same time, GOES-17 was nudged from 137.2 to 137.3. From these locations, GOES-18 ABI data will be interleaved for early imaging operations that mitigate the GOES-17 ABI's degraded imagery due to its loop heat pipe anomaly. The two interleave periods are August 1 - September 8, 2022 and October 13 - November 16, 2022.

Key Dates:
Launch March 1, 2022
Post-Launch-Test/Checkout (PLT) Part 1 March 24 - May 15, 2022
Drift to 136.8 W May 16 - June 6, 2022
Post-Launch-Test/Checkout (PLT) and PLPT Part 2 June 7 - January 3, 2023
1st Interleaving GOES-18 ABI through GOES-17 GRB August 1 - September 8, 2022
GOES-17 (GOES-West) Operations and GOES-18 Product Maturation Continues: GOES-18 Supplemental data for NWS via Cloud September 8 - October 13, 2022
2nd Interleaving GOES-18 ABI through GOES-17 GRB October 13 - November 16, 2022
GOES-17 (GOES-West) Operations and GOES-18 Product Maturation Continues: GOES-18 Supplemental data for NWS via Cloud November 16, 2022 - January 4, 2023
GOES-West Operations Declaration January 4, 2023