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). 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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1738 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
NRL
Mission
Civil Astronomy
Bus & Motor
NRL 24", Unknown motor
Mass
57 kg wet, 57 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Sphere, 0.3 m
Radar Cross Section
0.292 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 EXPLORER 30
1 01738U 65093A 25242.84594480 .00000297 00000-0 12492-3 0 9998
2 01738 59.7071 152.5286 0136911 127.2716 234.0899 14.41619258114525Epoch: 2025-08-30T20:18Z
TLE epoch observation values (Epoch: 2025-08-30T20:18:09.63Z)
Latitude
-0.00002°
Longitude
-131.28593°
Altitude
812.802 km
Speed
7.417 km/s
True Right ascension
10h 10m 06s
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
02:03:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
850.052 km
Perigee altitude
654.802 km
Semi-major axis
7,130.564 km
Eccentricity
0.01369
Inclination
59.7071°
RAAN
152.5286°
Arg. of periapsis
127.2716°
True anomaly
232.83193°
Mean anomaly
234.0899°
Eccentric anomaly
233.45965°
Mean motion
3.6046 °/min
Orbital period
99.87 mins
BSTAR
0.00012492
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-08-31 19:44:07.566Z | 202.384° SSW | 2025-08-31 19:49:07.566Z | 114.226° SE | 40.294° | 2025-08-31 19:53:07.566Z | 48.869° ENE |
| 6 mins | 2025-08-31 21:30:07.566Z | 282.162° WNW | 2025-08-31 21:32:07.566Z | 313.046° NW | 22.771° | 2025-08-31 21:36:07.566Z | 14.003° NNE |
| 5 mins | 2025-09-01 02:47:07.566Z | 6.394° NNE | 2025-09-01 02:49:07.566Z | 41.624° NE | 20.192° | 2025-09-01 02:52:07.566Z | 84.071° E |
| 7 mins | 2025-09-01 04:29:07.566Z | 310.822° NW | 2025-09-01 04:32:07.566Z | 260.779° W | 40.513° | 2025-09-01 04:36:07.566Z | 157.186° SSE |
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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