Geostationary Operational Environmental Satellite - 4
4th flight unit of the GOES 1st generation programme.
Main mission: operational meteorology including atmospheric sounding.
Substantial contribution to Space weather.
Mass at launch
Data access link
no link provided
Data access information
Data available in real-time to NOAA and re-distributed in near-real-time.
Details on Status
Initially placed at 98°W, it was moved to 135°W in 1981-1985; to 10°W in 1985; to 44°W since 1985.
09 Sep 1980
22 Nov 1988
Associated satellite programme and related satellites
Note: red tag: no longer operational , green tag: operational ,
blue tag : future
All known Instruments flying on
SEM/MAG SEM / Magnetometer
VAS VISSR Atmospheric Sounder
SEM/EPS SEM / Energetic Particles Sensor
SEM/HEPAD SEM / High Energy Proton and Alpha Particles Detector
SEM/XRS-EUV SEM / X-Ray Sensor - Extreme Ultra-Violet Sensor
DCIS Data Collection and Interrogation Service
Show instrument status and calibration
Satellite Field of View
Estimate of the satellite's footprint, assuming a zenith angle of 75
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