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
Spacecraft
Bus & Motor
NRL 20", Unknown motor
Mass
19 kg wet, 19 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 SOLRAD 1 (GREB)
1 46U 60007B 25311.72924275 .00001835 00000-0 36129-3 0 9994
2 46 66.6868 111.7748 0188728 100.2560 261.9890 14.54365597424799Epoch: 2025-11-07T17:30Z
TLE epoch observation values (Epoch: 2025-11-07T17:30:06.573Z)
Latitude
-0.00006°
Longitude
162.07836°
Altitude
734.672 km
Speed
7.477 km/s
True Right ascension
07h 27m 05s
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
02:16:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
843.552 km
Perigee altitude
576.014 km
Semi-major axis
7,087.92 km
Eccentricity
0.01887
Inclination
66.6868°
RAAN
111.7748°
Arg. of periapsis
100.256°
True anomaly
259.85495°
Mean anomaly
261.989°
Eccentric anomaly
260.92121°
Mean motion
3.63718 °/min
Orbital period
98.98 mins
BSTAR
0.00036129
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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 | 2025-11-08 11:46:27.418Z | 176.439° S | 2025-11-08 11:50:27.418Z | 114.554° SE | 29.479° | 2025-11-08 11:54:27.418Z | 48.17° ENE |
| 5 mins | 2025-11-08 13:30:27.418Z | 274.443° WNW | 2025-11-08 13:32:27.418Z | 313.705° NW | 22.391° | 2025-11-08 13:35:27.418Z | 0.915° NNE |
| 4 mins | 2025-11-08 20:27:27.418Z | 22.901° NE | 2025-11-08 20:28:27.418Z | 40.995° NE | 18.892° | 2025-11-08 20:31:27.418Z | 91.681° ESE |
| 6 mins | 2025-11-08 22:08:27.418Z | 301.716° NW | 2025-11-08 22:10:27.418Z | 254.669° W | 32.254° | 2025-11-08 22:14:27.418Z | 179.506° S |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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