NOAA Office of Satellite and Product Operations

Please Note:  

Update 7/10/2020: GOES-15 supplemental operations will begin on Sunday, August 9, 2020 at 0000 UTC and continue through Thursday, September 3, 2020 1600 UTC. See notification for more details.

To view imagery from the operational GOES East (GOES-16) and GOES West (GOES-17) satellites, users may visit

NOAA 15 SEM Subsystem Summary

Component Description Status
DPUSpace environment Monitor - Data Processing UnitGreen
MEPEDSpace environment Monitor - Medium Energy Proton DetectorGreen
TEDSpace environment Monitor - Total Energy DetectorGreen

Subsystem History:

Date Time Component Description
01/16/200307:09:00TEDInitiate TED IFC
01/16/200307:09:00TEDSEM perform IF cal for first time using new HV
01/14/200318:30:00TEDSet electron multiplier high voltage gains from level 0 to level 2
01/14/200318:30:00TEDChange TED high voltage multiplier from level 0 to level 2
05/13/199816:24:00TEDOn Orbit
05/13/199816:24:00MEPEDOn Orbit
05/13/199816:24:00DPUOn Orbit