Topic:  GOES-18 Hydrazine Bipropellant Thruster (HBT) Flush Scheduled for October 10, 2024 

 

Date/Time Issued: 1436 UTC

 

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

 

Date/Time of Initial Impact: October 10, 2024, 0255 UTC

 

Date/Time of Expected End: October 10, 2024, 0310 UTC

 

Length of Outage: 15 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 October 10, 2024 at 0255 UTC. During this maneuver, like the previous HBT flush, all instruments will continue operating. The maneuver could cause degradation to EXIS products, SUVI products' INR performance, and has caused severe GLM “throttle-limited”, false events. Product navigation may be degraded for up to 10 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:

See https://www.ospo.noaa.gov/Operations/messages.html for this and other satellite-related messages.

 

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