RELAY 2

737
Spacetrack Directory Number
1964-01-21
Orbit launches
5135.41 km
Average height
21170.81 km/h
Average velocity


Satellite information RELAY 2

Spacetrack Directory Name RELAY 2
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Orbit launches 1964-01-21 (62 years ago)
Days in orbit 22879
Country/organisation of origin USA (US)
Starting point AFETR (Kennedy Space Center/Cape Canaveral, USA)
Perigee 1866 km
Apogee 7635 km
Orbit slope (inclination) 46.45°
Laps per day 7
Height RELAY 2 5135.41 km

Additional information RELAY 2

RELAY 2, 737 is a payload satellite owned by GSFC (US) that was launched on Tue, 21 Jan 1964 UTC via a THOR DELTA B launch vehicle from the Air Force Eastern Test Range (AFETR). 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 RELAY 2 Date of exalting 21.01.1964y. Average height of ISS RELAY 2 hundred 5135.41 km. Average velocity RELAY 2 is 21170.81 km/h. Inclination RELAY 2 satellite 46.45°.

TLE



Average orbit height RELAY 2

Average velocity RELAY 2

Average inclination RELAY 2

Mean right ascension of the ascending node (RAAN) RELAY 2

Mean argument of perigee RELAY 2

Mean semi-major axis of the orbit RELAY 2

Mean orbital eccentricity RELAY 2

Update time: 2026-09-11 19:30:05
Average height of ISS RELAY 2 is: 5135.41km
Average velocity RELAY 2 is: 21170.81km/h
Average orbit height RELAY 2 is: 46.45°
RELAY 2 a new group of Starlink satellites has been launched 1964-01-21
RELAY 2 is from 22879 days Days in orbit.