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GOES-19

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GOES-19
Artistic rendering of GOES-U once deployed
NamesGeostationary Operational Environmental Satellite-U
Mission typeEarth weather forecasting
OperatorNOAA / NASA
COSPAR ID2024-119A Edit this at Wikidata
SATCAT no.60133Edit this on Wikidata
Mission duration15 years (planned)
636 days, 3 hours, 59 minutes (in progress)
Spacecraft properties
BusA2100
ManufacturerLockheed Martin
Launch mass5,000 kg (11,023 lb)
Dry mass2,925 kg (6,449 lb)
Start of mission
Launch date25 June 2024, 21:26 (2024-06-25UTC21:26Z) UTC[2] (5:26 pm EDT)
RocketFalcon Heavy
Launch siteKennedy Space Center, LC-39A
ContractorSpaceX
Entered service7 April 2025[1]
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Longitude75.2° west (planned)[3]
Semi-major axis41,845 km (26,001 mi)[4]
Eccentricity0.0045031[4]
Perigee altitude35,286.4 km (21,926.0 mi)[4]
Apogee altitude35,663.3 km (22,160.1 mi)[4]
Inclination0.1204°[2]
Period24 hours[4]
EpochJuly 12, 2024

GOES-U mission insignia
← GOES-18

GOES-19 (designated GOES-U prior to reaching geostationary orbit) is a weather satellite, the fourth and last of the GOES-R series of satellites operated by the National Oceanic and Atmospheric Administration (NOAA). The GOES-R series will extend the availability of the Geostationary Operational Environmental Satellite (GOES) system until 2036. The satellite is built by Lockheed Martin, based on the A2100 platform.[5][6] The satellite was placed into service as the GOES-East position and GOES-16 was stored as backup on April 7, 2025.[7]

Launch

[edit]
Launch of GOES-19

The satellite was successfully launched into space atop a SpaceX Falcon Heavy rocket on 25 June 2024 at 21:26 UTC (5:26 pm EDT local time at the launch site),[2] from the Kennedy Space Center in Florida, United States. The redesign of the loop heat pipe to prevent an anomaly, as seen in GOES-17, was not expected to delay the launch as with GOES-T.[8] GOES-19 has a dry mass of 2,925 kg (6,449 lb) and a fueled mass of 5,000 kg (11,023 lb).[9]

GOES-19 also carries a copy of the Naval Research Laboratory's Compact CORonagraph (CCOR) instrument designated as CCOR-1 which, along with the CCOR carried onboard Space weather Observations at L1 to Advance Readiness - 1 (SOLAR-1), will allow continued monitoring of solar wind after the retirement of the NASA-ESA SOHO satellite in 2025.[10][11] CCOR-1 on GOES-19 provides a field of view of 3.7 to 18.7 solar radii, partially comparable to LASCO C3's field of view onboard SOHO, with a 33 arcsecond spatial resolution.[12]

Comet discoveries through CCOR-1

[edit]
See also: List of Kreutz sungrazers

The CCOR instrument carried aboard GOES-19 has allowed for the discovery of several sungrazer comets by researchers analyzing CCOR imagery. As of 28 May 2025, GOES-19's CCOR-1 has found 47 comets.[13]

The faint comet 3I/ATLAS was observable from 18–24 October 2025 with GOES-19 as the satellite can see objects down to magnitude 12.[14]

References

[edit]
  1. ^ "OSPO Administrative Message declaring GOES 19 Operational". NOAA Office of Satellites And Product Operations Satellite Alert Messages. 7 April 2025. Retrieved 7 April 2025.
  2. ^ a b c Garofalo, Meredith (25 June 2024). "Powerful GOES-U weather satellite launches to orbit atop SpaceX Falcon Heavy rocket". space.com.
  3. ^ "NOAA's GOES-U Reaches Geostationary Orbit, Now Designated GOES-19". NESDIS. NOAA. 8 July 2024. Retrieved 14 July 2024. Public Domain This article incorporates text from this source, which is in the public domain.
  4. ^ a b c d e "GOES-19 (GOES-U)". n2yo.com. Retrieved 14 July 2024.
  5. ^ "GOES-R, S, T, U Spacecraft Overview". Spaceflight101. Archived from the original on 5 June 2024. Retrieved 17 January 2024.
  6. ^ Andrews, Hillary (27 March 2024). "GOES-U weather satellite to launch June 25 after leak causes delay". FOX Weather. Retrieved 8 April 2024.
  7. ^ "NOAA's GOES-19 satellite now operational, providing critical new data to forecasters". NOAA.gov. National Oceanic and Atmospheric Administration. Retrieved 8 April 2025.
  8. ^ Werner, Debra (9 January 2019). "Lockheed Martin halts work on GOES-T to wait for instrument fix". SpaceNews. Retrieved 26 May 2019.
  9. ^ "GOES-R Series Spacecraft Overview". GOES-R Series. Retrieved 17 January 2024.
  10. ^ Vargas, Marco (7 January 2019). "The NOAA Space Weather Follow-On Program to Ensure Continuity of CME Imagery and Solar Wind Space-Based Observations". American Meteorilogical Society 99th Annual Meeting. AMS. Retrieved 24 March 2020.
  11. ^ "Space Weather Follow On-Lagrange 1". NESDIS. NOAA. Retrieved 24 March 2020. Public Domain This article incorporates text from this source, which is in the public domain.
  12. ^ "SWFO Instruments". NESDIS. NOAA. Retrieved 22 February 2026.
  13. ^ "April and May 2025 Confirmations".
  14. ^ Worachate Boonplod on Comets-ML
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