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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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<iframe src="https://www.satcat.com/sats-embedded/932?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

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

13 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, 0.6 m

Radar Cross Section

0.411 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 13 hours ago

0 EXPLORER 25 (INJUN-4)
1 00932U 64076B   25181.81009098  .00000204  00000-0  69901-4 0  9994
2 00932  81.3411 288.8197 1119953 345.1077  11.9368 12.66759762774639

Epoch: 2025-06-30T19:26Z

TLE epoch observation values (Epoch: 2025-06-30T19:26:31.86Z)

Latitude

0.00001°

Longitude

78.07239°

Altitude

551.012 km

Speed

7.989 km/s

True Right ascension

19h 15m 16s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

-43.3065°

Longitude

69.44656°

Altitude

620.695 km

Speed

7.923 km/s

Apparent Right ascension

13h 48m 40s

Apparent Declination

-77° 39' 04"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

20:09:40

Azimuth

196.124° SSW

Elevation

-39.928°

Doppler factor

Orbital elements

Apogee altitude

2,262.755 km

Perigee altitude

522.209 km

Semi-major axis

7,770.619 km

Eccentricity

0.112

Inclination

81.3411°

RAAN

288.8197°

Arg. of periapsis

345.1077°

True anomaly

Unknown

Mean anomaly

11.9368°

Eccentric anomaly

Unknown

Mean motion

3.16854 °/min

Orbital period

113.62 mins

BSTAR

0.000069901

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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.
10 mins	2025-07-01 08:49:32.329Z	226.099° WSW	2025-07-01 08:53:32.329Z	282.677° WNW	29.288°	2025-07-01 08:59:32.329Z	353.988° N
16 mins	2025-07-01 16:51:32.329Z	21.213° NNE	2025-07-01 16:58:32.329Z	64.915° ENE	22.674°	2025-07-01 17:07:32.329Z	111.684° ESE
23 mins	2025-07-01 18:44:32.329Z	352.757° N	2025-07-01 18:54:32.329Z	84.619° E	44.819°	2025-07-01 19:07:32.329Z	170.66° S
18 mins	2025-07-01 20:40:32.329Z	325.733° NNW	2025-07-01 20:48:32.329Z	277.062° WNW	26.031°	2025-07-01 20:58:32.329Z	225.852° WSW
9 mins	2025-07-02 07:34:32.329Z	166.706° S	2025-07-02 07:37:32.329Z	104.855° ESE	40.885°	2025-07-02 07:43:32.329Z	16.279° NNE

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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.