Launch Details

Launched	28 June 1961
Flight ended	–
Status	Unknown
Launch site	Air Force Eastern Test Range, Florida, USA
Owner	United States
NORAD ID	643
COSPAR ID	1961-015GU
Observing

Current orbital elements

Inclination	66.370°
Eccentricity	0.03348
RA ascending node	3.342 hr
Argument perigee	215.017°
Mean anomaly	142.845°
Orbital period	107.793 min
Epoch of osculation	06 Aug 2025, 21:54

See historical orbital elements »

Derived Quantities

Min Altitude	880.5 km
Mean Altitude	1131.7 km
Peak Altitude	1382.9 km

Launched alongside

TRANSIT 4A SOLRAD 3 & INJUN 1 THOR ABLESTAR R/B THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR DEB THOR ABLESTAR 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