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From Wikipedia, the free encyclopedia

Launch of ESSA-4.
Launch of ESSA-4.

ESSA-4 (or TOS-B) was a spin-stabilized operational meteorological satellite. Its name was derived from that of its oversight agency, the Environmental Science Services Administration (ESSA).

Launch

ESSA-4 was launched on January 26, 1967 at 17:31 UTC. It was launched atop a Delta rocket from Vandenberg Air Force Base, California, U.S.. The spacecraft had a mass of 285 kilograms (628 lb) at the time of launch. ESSA-4 had an inclination of 102°, and an orbited the earth once every 113.4 minutes. Its perigee was 1,328 kilometers (825 mi) and its apogee was 1,443 kilometers (897 mi).

References

 This article incorporates public domain material from the National Aeronautics and Space Administration document: "ESSA 4". Retrieved June 4, 2018.

This page was last edited on 2 February 2021, at 16:43
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