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EXPLORER 25 (INJUN-4), 932

Orbit data source: Space-Track

EXPLORER 25 (INJUN-4), 932 is a payload satellite owned by NASA LaRC (US) in LEO that was launched on Sat, 21 Nov 1964 UTC via an SCOUT X-4 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.

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EXPLORER 25 (INJUN-4) details
Identifier
932, 1964-076B
Orbit
LEO
Last TLE update10 hours ago
Origin
Flag of USNASA LaRC (US)
ManufacturerBENDX/UIA
MissionCivil Science
Bus & MotorBENDIX UTILITY, Unknown motor
Mass41 kg wet, 41 kg dry
Launch date (UTC)
1964-11-21 (60 years ago)
Launch vehicle
SCOUT X-4
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBRPoly, 0.6 m
Radar Cross Section0.411 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 10 hours ago
0 EXPLORER 25 (INJUN-4)
1   932U 64076B   25043.10720068  .00001567  00000-0  56217-3 0  9998
2   932  81.3407  35.4646 1120332 299.4248  49.9560 12.66505216756686
Epoch: 2025-02-12T02:34Z
Definitive object data (Epoch: 2025-02-12T02:34:22.138Z)
Latitude-0.00001°
Longitude-145.53006°
Altitude902.188 km
Speed7.634 km/s
True Right ascension02h 21m 51s
True Declination0° 00' 00"
Sunlit
Object was in daylight at TLE epoch
Visualization TLE readout
Latitude56.80989°
Longitude20.74086°
Altitude2,274.313 km
Speed6.402 km/s
Apparent Right ascension08h 06m 33s
Apparent Declination54° 02' 42"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time15:16:13
Azimuth322.634° NNW
Elevation22.619°
Doppler factor1
Orbital elements
Apogee altitude2,264.208 km
Perigee altitude522.84 km
Semi-major axis7,771.661 km
Eccentricity0.1120332
Inclination81.3407°
RAAN35.4646°
Arg. of periapsis299.4248°
True anomaly60.68928°
Mean anomaly49.956°
Eccentric anomaly55.22882°
Mean motion3.16791 °/min
BSTAR0.00056217
Orbital period113.64 mins
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EXPLORER 25 (INJUN-4) Visibility forecast

Observer location: undefined°, undefined

Span
Click to sort rows by Start time (UTC) header in descending order
Start Az.
Max El. time (UTC)
Max El. Az.
Max El.
End time (UTC)
End Az.
16 mins2025-02-12 12:45:25.285Z322.532° NNW2025-02-12 12:51:25.285Z283.727° WNW29.691°2025-02-12 13:01:25.285Z222.105° SW
15 mins2025-02-12 23:32:25.285Z157.726° S2025-02-12 23:37:25.285Z96.02° ESE39.291°2025-02-12 23:47:25.285Z16.441° NNE
15 mins2025-02-13 01:27:25.285Z239.945° WSW2025-02-13 01:33:25.285Z298.663° NW29.41°2025-02-13 01:42:25.285Z356.937° N
20 mins2025-02-13 09:31:25.285Z5.968° NNE2025-02-13 09:41:25.285Z63.642° ENE30.855°2025-02-13 09:51:25.285Z126.292° SE
22 mins2025-02-13 11:26:25.285Z346.338° N2025-02-13 11:37:25.285Z270.524° WNW43.668°2025-02-13 11:48:25.285Z185.996° SSW
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