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). Payload-class satellites include a variety of spacecraft 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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932 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
BENDX/UIA
Mission
Spacecraft
Bus & Motor
BENDIX UTILITY, Unknown motor
Mass
41 kg wet, 41 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 EXPLORER 25 (INJUN-4)
1 00932U 64076B 25305.41371232 .00001055 00000-0 36584-3 0 9995
2 00932 81.3424 193.7539 1120055 64.8931 306.4103 12.66885647790286Epoch: 2025-11-01T09:55Z
TLE epoch observation values (Epoch: 2025-11-01T09:55:44.744Z)
Latitude
-0.00001°
Longitude
3.87332°
Altitude
950.142 km
Speed
7.586 km/s
True Right ascension
12h 55m 00s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
06:03:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,262.261 km
Perigee altitude
521.672 km
Semi-major axis
7,770.104 km
Eccentricity
0.11201
Inclination
81.3424°
RAAN
193.7539°
Arg. of periapsis
64.8931°
True anomaly
295.22076°
Mean anomaly
306.4103°
Eccentric anomaly
300.90394°
Mean motion
3.16886 °/min
Orbital period
113.61 mins
BSTAR
0.00036584
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Other satellites on launch #76 in the year 1964 (1964-11-21 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.EXPLORER 25 (INJUN-4) Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-11-02 16:23:21.165Z | 123.843° SE | 2025-11-02 16:25:21.165Z | 93.917° ESE | 14.581° | 2025-11-02 16:27:21.165Z | 60.465° ENE |
| 4 mins | 2025-11-02 18:18:21.165Z | 249.156° W | 2025-11-02 18:20:21.165Z | 292.865° NW | 21.698° | 2025-11-02 18:22:21.165Z | 331.641° NNW |
| 12 mins | 2025-11-03 04:10:21.165Z | 1.756° NNE | 2025-11-03 04:14:21.165Z | 97.299° ESE | 43.179° | 2025-11-03 04:22:21.165Z | 164.518° S |
| 7 mins | 2025-11-03 06:06:21.165Z | 294.001° NW | 2025-11-03 06:08:21.165Z | 273.568° WNW | 16.42° | 2025-11-03 06:13:21.165Z | 233.949° WSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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