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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). 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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https://www.satcat.com/sats-embedded/932?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

932, 1964-076B

Orbit

LEO

Last TLE update

22 hours ago

Origin

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

BENDX/UIA

Mission

Civil Science

Bus & Motor

BENDIX UTILITY, Unknown motor

Mass

41 kg wet, 41 kg dry

Launch date (UTC)

1964-11-21 (61 years ago)

Launch vehicle

SCOUT X-4

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Poly, 0.3 m

Radar Cross Section

0.411 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 22 hours ago

0 EXPLORER 25 (INJUN-4)
1 00932U 64076B   25199.65816166  .00000243  00000-0  86420-4 0  9995
2 00932  81.3407 275.0915 1119416 304.6519  45.3925 12.66768199776899

Epoch: 2025-07-18T15:47Z

TLE epoch observation values (Epoch: 2025-07-18T15:47:45.167Z)

Latitude

-0.00001°

Longitude

101.44684°

Altitude

842.347 km

Speed

7.692 km/s

True Right ascension

18h 20m 21s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

-8.78471°

Longitude

-77.91449°

Altitude

1,665.919 km

Speed

6.919 km/s

Apparent Right ascension

08h 54m 26s

Apparent Declination

-38° 22' 53"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

02:35:21

Azimuth

119.076° SE

Elevation

-26.643°

Doppler factor

Orbital elements

Apogee altitude

2,262.299 km

Perigee altitude

522.596 km

Semi-major axis

7,770.585 km

Eccentricity

0.11194

Inclination

81.3407°

RAAN

275.0915°

Arg. of periapsis

304.6519°

True anomaly

55.46245°

Mean anomaly

45.3925°

Eccentric anomaly

50.32936°

Mean motion

3.16857 °/min

Orbital period

113.62 mins

BSTAR

0.00008642

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Other satellites on launch #76 in the year 1964 (1964-11-21 UTC)

EXPLORER 24 (ADI-2), 931 (Decayed)

SCOUT X-4 R/B, 933

SCOUT X-4 DEB, 934 (Decayed)

SCOUT X-4 DEB, 935 (Decayed)

SCOUT X-4 DEB, 936 (Decayed)

SCOUT X-4 DEB, 937 (Decayed)

SCOUT X-4 DEB, 939 (Decayed)

SCOUT X-4 DEB, 941 (Decayed)

SCOUT X-4 DEB, 960 (Decayed)

SCOUT X-4 DEB, 1411 (Decayed)

SCOUT X-4 DEB, 4079 (Decayed)

SCOUT X-4 DEB, 940 (Decayed)

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.
21 mins	2025-07-19 15:08:23.943Z	5.605° NNE	2025-07-19 15:18:23.943Z	60.659° ENE	29.591°	2025-07-19 15:29:23.943Z	125.58° SE
23 mins	2025-07-19 17:03:23.943Z	347.636° N	2025-07-19 17:15:23.943Z	245.793° WSW	44.183°	2025-07-19 17:26:23.943Z	182.791° SSW
15 mins	2025-07-19 19:00:23.943Z	322.999° NNW	2025-07-19 19:07:23.943Z	287.565° WNW	19.9°	2025-07-19 19:15:23.943Z	245.292° WSW
9 mins	2025-07-20 03:58:23.943Z	98.539° ESE	2025-07-20 04:01:23.943Z	73.693° E	17.116°	2025-07-20 04:07:23.943Z	35.465° NE
16 mins	2025-07-20 05:48:23.943Z	188.671° SSW	2025-07-20 05:54:23.943Z	317.258° NNW	44.964°	2025-07-20 06:04:23.943Z	9.176° NNE
11 mins	2025-07-20 07:47:23.943Z	274.87° WNW	2025-07-20 07:51:23.943Z	307.151° NW	18.862°	2025-07-20 07:58:23.943Z	349.134° N

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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Check out EXPLORER 25 (INJUN-4), 932 on other resources

View EXPLORER 25 (INJUN-4), 932 on NASA - NSSDCA Website

View EXPLORER 25 (INJUN-4), 932 on Heavens-Above

View EXPLORER 25 (INJUN-4), 932 on Keep Track

View EXPLORER 25 (INJUN-4), 932 on Celestrak

View EXPLORER 25 (INJUN-4), 932 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.