SOLRAD 1 (GREB), 46
Orbit data source: Space-Track
SOLRAD 1 (GREB), 46 is a payload satellite owned by NRL (US) in LEO that was launched on Wed, 22 Jun 1960 UTC via a THOR ABLESTAR launch vehicle from the Air Force Eastern Test Range (AFETR). 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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46 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
NRL
Mission
Defense Sigint
Bus & Motor
NRL 20", Unknown motor
Mass
19 kg wet, 19 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Sphere, 0.1 m
Radar Cross Section
0.204 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 SOLRAD 1 (GREB)
1 00046U 60007B 25258.43032272 .00000743 00000-0 15888-3 0 9995
2 00046 66.6866 256.9301 0191802 141.6474 219.8457 14.54198056417049Epoch: 2025-09-15T10:19Z
TLE epoch observation values (Epoch: 2025-09-15T10:19:39.883Z)
Latitude
-0.00001°
Longitude
107.37883°
Altitude
819.571 km
Speed
7.388 km/s
True Right ascension
17h 07m 43s
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
17:00:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
846.286 km
Perigee altitude
574.369 km
Semi-major axis
7,088.464 km
Eccentricity
0.01918
Inclination
66.6866°
RAAN
256.9301°
Arg. of periapsis
141.6474°
True anomaly
218.46307°
Mean anomaly
219.8457°
Eccentric anomaly
219.15185°
Mean motion
3.63676 °/min
Orbital period
98.99 mins
BSTAR
0.00015888
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Other satellites on launch #7 in the year 1960 (1960-06-22 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.SOLRAD 1 (GREB) Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-09-16 01:18:41.912Z | 190.519° SSW | 2025-09-16 01:22:41.912Z | 124.068° SE | 40.108° | 2025-09-16 01:26:41.912Z | 40.234° NE |
| 5 mins | 2025-09-16 03:02:41.912Z | 279.547° WNW | 2025-09-16 03:04:41.912Z | 308.848° NW | 18.699° | 2025-09-16 03:07:41.912Z | 352.215° N |
| 5 mins | 2025-09-16 09:59:41.912Z | 7.128° NNE | 2025-09-16 10:01:41.912Z | 49.688° ENE | 25.886° | 2025-09-16 10:04:41.912Z | 107.91° ESE |
| 4 mins | 2025-09-16 11:41:41.912Z | 283.202° WNW | 2025-09-16 11:43:41.912Z | 241.395° WSW | 21.622° | 2025-09-16 11:45:41.912Z | 206.211° SW |
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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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