Launch Details

Launched	26 November 1963
Flight ended	–
Status	Unknown
Launch site	Air Force Eastern Test Range, Florida, USA
Owner	United States
NORAD ID	739
COSPAR ID	1963-047H
Observing

Current orbital elements

Inclination	30.425°
Eccentricity	0.06360
RA ascending node	6.362 hr
Argument perigee	343.700°
Mean anomaly	14.398°
Orbital period	103.960 min
Epoch of osculation	02 Feb 2026, 11:42

See historical orbital elements »

Derived Quantities

Min Altitude	487.0 km
Mean Altitude	952.8 km
Peak Altitude	1418.6 km

Launched alongside

EXPLORER 18 ATLAS CENTAUR 2 ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB ATLAS CENTAUR 2 DEB