Spacecraft information: EXPLORER 25

Launch Details
Launched 20 November 1964
Flight ended –
Status Unknown
Launch site Air Force Western Test Range, California, USA
Owner United States
NORAD ID 932
COSPAR ID 1964-076B
Alternative names INJUN 4
Observing

Current orbital elements

Inclination 81.341°
Eccentricity 0.11192
RA ascending node 8.155 hr
Argument perigee 214.273°
Mean anomaly 138.102°
Orbital period 113.650 min
Epoch of osculation 02 Feb 2026, 06:37

See historical orbital elements »

Derived Quantities

Min Altitude 531.3 km
Mean Altitude 1401.1 km
Peak Altitude 2271.0 km

Launched alongside

EXPLORER 24 SCOUT X-4 R/B SCOUT X-4 DEB SCOUT X-4 DEB SCOUT X-4 DEB SCOUT X-4 DEB SCOUT X-4 DEB SCOUT X-4 DEB SCOUT X-4 DEB SCOUT X-4 DEB SCOUT X-4 DEB SCOUT X-4 DEB

Orbital History

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South El Monte

Latitude:
Longitude:
Timezone:

34.05°N
118.05°W
PST

Color scheme


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Last updated: 04 Feb 2026, 19:16 UTC
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