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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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Identifier
46, 1960-007B
Orbit
LEO
Last TLE update
22 hours ago
Origin
Manufacturer
NRL
Mission
Defense Sigint
Bus & Motor
NRL 20", Unknown motor
Mass
19 kg wet, 19 kg dry
Launch date (UTC)
1960-06-22 (65 years ago)
Launch vehicle
THOR ABLESTAR
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Sphere, 0.3 m
Radar Cross Section
0.204 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 22 hours ago
0 SOLRAD 1 (GREB)
1 00046U 60007B   25191.09383381  .00000339  00000-0  83615-4 0  9998
2 00046  66.6887  80.2789 0198722 192.5376 167.0754 14.54023636407251
Epoch: 2025-07-10T02:15Z
TLE epoch observation values (Epoch: 2025-07-10T02:15:07.241Z)
Latitude
-0.00001°
Longitude
118.23367°
Altitude
852.157 km
Speed
7.355 km/s
True Right ascension
05h 21m 06s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
57.05308°
Longitude
-105.65928°
Altitude
688.574 km
Speed
7.535 km/s
Apparent Right ascension
21h 08m 52s
Apparent Declination
37° 33' 01"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
12:31:05
Azimuth
37.752° NE
Elevation
0.271°
Doppler factor
1
Orbital elements
Apogee altitude
851.769 km
Perigee altitude
570.02 km
Semi-major axis
7,089.031 km
Eccentricity
0.01987
Inclination
66.6887°
RAAN
80.2789°
Arg. of periapsis
192.5376°
True anomaly
Unknown
Mean anomaly
167.0754°
Eccentric anomaly
Unknown
Mean motion
3.63633 °/min
Orbital period
99 mins
BSTAR
0.000083615
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SOLRAD 1 (GREB) 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.
4 mins2025-07-11 01:54:53.371Z17.022° NNE2025-07-11 01:56:53.371Z44.985° NE14.6°2025-07-11 01:58:53.371Z72.989° E
7 mins2025-07-11 03:35:53.371Z324.246° NNW2025-07-11 03:38:53.371Z264.385° W43.204°2025-07-11 03:42:53.371Z160.891° S
9 mins2025-07-11 18:00:53.371Z204.811° SW2025-07-11 18:04:53.371Z110.673° ESE44.897°2025-07-11 18:09:53.371Z30.404° NE
5 mins2025-07-11 19:44:53.371Z286.258° WNW2025-07-11 19:46:53.371Z310.425° NW16.596°2025-07-11 19:49:53.371Z347.916° N
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