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EXPLORER 30, 1738

Orbit data source: Space-Track

EXPLORER 30, 1738 is a payload satellite owned by NRL (US) in LEO that was launched on Fri, 19 Nov 1965 UTC via an SCOUT X-4 launch vehicle from the Wallops Island (WLPIS). 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 30 details
Identifier
1738, 1965-093A
Orbit
LEO
Last TLE update1 day ago
Origin
Flag of USNRL (US)
ManufacturerNRL
MissionCivil Astronomy
Bus & MotorNRL 24", Unknown motor
Mass57 kg wet, 57 kg dry
Launch date (UTC)
1965-11-19 (59 years ago)
Launch vehicle
SCOUT X-4
Launch site
Wallops Island (WLPIS)
Object type
Payload
Rocket body
Debris
Shape & HBRSphere, 0.61 m
Radar Cross Section0.292 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 1 day ago
0 EXPLORER 30
1 01738U 65093A   25042.54124570  .00000385  00000-0  15170-3 0  9996
2 01738  59.7080 113.7028 0123513 308.5959  50.4067 14.41436495 85642
Epoch: 2025-02-11T12:59Z
Definitive object data (Epoch: 2025-02-11T12:59:23.628Z)
Latitude-0.00005°
Longitude137.00973°
Altitude699.779 km
Speed7.536 km/s
True Right ascension07h 34m 48s
True Declination0° 00' 00"
Sunlit
Object was in full shadow at TLE epoch
Visualization TLE readout
Latitude58.36063°
Longitude-156.00509°
Altitude818.568 km
Speed7.421 km/s
Apparent Right ascension07h 46m 42s
Apparent Declination21° 24' 50"
Sunlit
Object is in full shadow
Visualization observer readout
Local Sidereal Time16:50:51
Azimuth317.689° NNW
Elevation-16.241°
Doppler factor1
Orbital elements
Apogee altitude841.109 km
Perigee altitude664.95 km
Semi-major axis7,131.167 km
Eccentricity0.0123513
Inclination59.708°
RAAN113.7028°
Arg. of periapsis308.5959°
True anomaly51.50812°
Mean anomaly50.4067°
Eccentric anomaly50.95633°
Mean motion3.60415 °/min
BSTAR0.0001517
Orbital period99.88 mins
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Other satellites on launch #93 in the year 1965 (1965-11-19 UTC)

EXPLORER 30 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 mins2025-02-12 14:28:47.191Z325.644° NNW2025-02-12 14:33:47.191Z39.29° NE42.861°2025-02-12 14:38:47.191Z130.227° SE
6 mins2025-02-12 16:14:47.191Z272.997° WNW2025-02-12 16:16:47.191Z246.47° WSW19.499°2025-02-12 16:20:47.191Z199.82° SSW
4 mins2025-02-13 05:05:47.191Z136.176° SSE2025-02-13 05:07:47.191Z108.161° ESE16.638°2025-02-13 05:09:47.191Z82.965° E
8 mins2025-02-13 06:46:47.191Z231.607° WSW2025-02-13 06:49:47.191Z278.533° WNW42.376°2025-02-13 06:54:47.191Z34.154° NE
5 mins2025-02-13 08:32:47.191Z308.021° NW2025-02-13 08:34:47.191Z334.455° NNW16.836°2025-02-13 08:37:47.191Z9.921° NNE
4 mins2025-02-13 12:04:47.191Z3.28° NNE2025-02-13 12:06:47.191Z26.459° NE14.043°2025-02-13 12:08:47.191Z48.484° ENE
8 mins2025-02-13 13:47:47.191Z339.711° N2025-02-13 13:50:47.191Z28.035° NE35.476°2025-02-13 13:55:47.191Z113.356° SE
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