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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 (60 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   25128.65870109  .00001162  00000-0  40307-3 0  9998
2 00932  81.3401 329.6938 1121028 105.5220 267.2297 12.66707786767907

Epoch: 2025-05-08T15:48Z

Definitive object data (Epoch: 2025-05-08T15:48:31.774Z)

Latitude

-0.00005°

Longitude

-134.16463°

Altitude

1,536.187 km

Speed

7.035 km/s

True Right ascension

21h 58m 46s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

28.68°

Longitude

-129.84004°

Altitude

1,088.139 km

Speed

7.456 km/s

Apparent Right ascension

23h 34m 56s

Apparent Declination

-2° 44' 49"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:22:17

Azimuth

40.118° NE

Elevation

-45.59°

Doppler factor

Orbital elements

Apogee altitude

2,263.827 km

Perigee altitude

521.563 km

Semi-major axis

7,770.832 km

Eccentricity

0.1121028

Inclination

81.3401°

RAAN

329.6938°

Arg. of periapsis

105.522°

True anomaly

254.58824°

Mean anomaly

267.2297°

Eccentric anomaly

260.88774°

Mean motion

3.16841 °/min

BSTAR

0.00040307

Orbital period

113.62 mins

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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.
6 mins	2025-05-09 12:47:39.367Z	126.852° SE	2025-05-09 12:50:39.367Z	98.488° ESE	17.252°	2025-05-09 12:53:39.367Z	61.466° ENE
9 mins	2025-05-09 14:40:39.367Z	209.758° SW	2025-05-09 14:45:39.367Z	274.274° WNW	37.396°	2025-05-09 14:49:39.367Z	351.234° N
6 mins	2025-05-10 00:37:39.367Z	27.659° NE	2025-05-10 00:39:39.367Z	81.794° E	31.87°	2025-05-10 00:43:39.367Z	144.927° SSE

Authenticating...

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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.