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SOLRAD 7B, 1291

Orbit data source: Space-Track

SOLRAD 7B, 1291 is an American payload satellite in LEO that was launched on Tue, 09 Mar 1965 UTC via a THOR SLV-2 AGENA D launch vehicle from the Air Force Western Test Range (AFWTR). 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
1291, 1965-016D
Orbit
LEO
Last TLE update
6 hours ago
Origin
Manufacturer
NRL
Mission
Defense Science
Bus & Motor
NRL 24", Unknown motor
Mass
47 kg wet, 47 kg dry
Launch date (UTC)
1965-03-09 (60 years ago)
Launch vehicle
THOR SLV-2 AGENA D
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Sphere + 1 Ant, 1.5 m
Radar Cross Section
0.248 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 6 hours ago
0 SOLRAD 7B
1  1291U 65016D   25192.14927881  .00000009  00000-0  45460-4 0  9992
2  1291  70.0778 241.2866 0022386 214.8496 145.1145 13.94917171 69636
Epoch: 2025-07-11T03:34Z
TLE epoch observation values (Epoch: 2025-07-11T03:34:57.689Z)
Latitude
-0.00001°
Longitude
-101.75913°
Altitude
927.166 km
Speed
7.382 km/s
True Right ascension
16h 05m 08s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
70.17073°
Longitude
-11.21267°
Altitude
932.121 km
Speed
7.388 km/s
Apparent Right ascension
08h 49m 25s
Apparent Declination
48° 15' 12"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
21:28:23
Azimuth
6.472° NNE
Elevation
-1.408°
Doppler factor
1
Orbital elements
Apogee altitude
925.8 km
Perigee altitude
893.172 km
Semi-major axis
7,287.623 km
Eccentricity
0.00224
Inclination
70.0778°
RAAN
241.2866°
Arg. of periapsis
214.8496°
True anomaly
Unknown
Mean anomaly
145.1145°
Eccentric anomaly
Unknown
Mean motion
3.48871 °/min
Orbital period
103.19 mins
BSTAR
0.00004546
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SOLRAD 7B 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.
6 mins2025-07-11 12:44:43.557Z17.499° NNE2025-07-11 12:47:43.557Z50.964° ENE15.804°2025-07-11 12:50:43.557Z82.549° E
10 mins2025-07-11 14:29:43.557Z334.969° NNW2025-07-11 14:33:43.557Z313.639° NW44.854°2025-07-11 14:39:43.557Z158.433° S
9 mins2025-07-12 03:47:43.557Z161.283° S2025-07-12 03:51:43.557Z109.738° ESE29.108°2025-07-12 03:56:43.557Z45.524° ENE
9 mins2025-07-12 05:33:43.557Z244.9° WSW2025-07-12 05:37:43.557Z305.974° NW31.394°2025-07-12 05:42:43.557Z7.778° NNE
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