Topic:  GOES-18 Hydrazine Bipropellant Thruster (HBT) Flush Scheduled for February 1, 2024 

 

Date/Time Issued: January 19, 2024, 1502 UTC

 

Product(s) or Data Impacted: GOES-18 ABI, EXIS, SUVI, and GLM potential product degradation.

 

Date/Time of Initial Impact: February 1, 2024, 0320 UTC

 

Date/Time of Expected End: February 1, 2024, 0350 UTC

 

Length of Outage: 30 minutes

 

Details/Specifics of Change:   HBTs are used for large satellite maneuvers and must be flushed periodically to assure nominal performance. A GOES-18 HBT Flush will be performed on February 1, 2024 at  0320 UTC. During this maneuver, unlike previous HBT flushes, ABI will continue its imaging timeline. The maneuver could cause degradation to ABI, EXIS, and SUVI products, and has caused severe GLM “throttle-limited”, false events. Product navigation may be degraded for up to 20 minutes after the conclusion of the HBT flush.

 

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880

 

Web Site(s) for Applicable Information:

 

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