ESSA 4 (TOS-B)

2657
Spacetrack Directory Number
1967-01-26
Orbit launches


Satellite information ESSA 4 (TOS-B)

Spacetrack Directory Name ESSA 4 (TOS-B)
Orbit launches 1967-01-26
Deorbitation
Country/organisation of origin USA (US)
Starting point AFWTR (Vandenberg Air Force Base, USA)
WWW Here
Perigee 1326 km
Apogee 1439 km

Additional information ESSA 4 (TOS-B)

ESSA 4 (TOS-B), 2657 is a payload satellite owned by ESSA (US) in SSO that was launched on Thu, 26 Jan 1967 UTC via a THOR DELTA E launch vehicle from the Air Force Western Test Range (AFWTR). Payloads include a variety of satellites, spacecraft, and rockets equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

satellite ESSA 4 (TOS-B) Date of exalting 26.01.1967y.


Update time: 2026-04-08 13:41:09
ESSA 4 (TOS-B) a new group of Starlink satellites has been launched 1967-01-26