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OPS 5712 (P/L 152), 2873

Orbit data source: Space-Track

OPS 5712 (P/L 152), 2873 is an American payload satellite in LEO that was launched on Wed, 31 May 1967 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
2873, 1967-053G
Orbit
LEO
Last TLE update
4 hours ago
Origin
Manufacturer
NRL
Mission
Defense Sigint
Bus & Motor
NRL 24", Unknown motor
Mass
52 kg wet, 52 kg dry
Launch date (UTC)
1967-05-31 (58 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
Ell + 1 Ant, 18 m
Radar Cross Section
1.267 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 4 hours ago
0 OPS 5712 (P/L 152)
1  2873U 67053G   25181.90969311  .00000032  00000-0  60104-4 0  9996
2  2873  69.9748  85.0298 0010156 256.2390 181.0672 13.98420204960055
Epoch: 2025-06-30T21:49Z
TLE epoch observation values (Epoch: 2025-06-30T21:49:57.484Z)
Latitude
66.53183°
Longitude
-105.04608°
Altitude
917.554 km
Speed
7.396 km/s
True Right ascension
09h 26m 37s
True Declination
66° 24' 31"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-3.93921°
Longitude
19.40522°
Altitude
899.886 km
Speed
7.403 km/s
Apparent Right ascension
20h 26m 25s
Apparent Declination
-33° 42' 14"
Sunlit
Object is in full shadow
Visualization observer readout
Local Sidereal Time
13:23:33
Azimuth
109.335° ESE
Elevation
-31.931°
Doppler factor
1
Orbital elements
Apogee altitude
904.703 km
Perigee altitude
889.925 km
Semi-major axis
7,275.451 km
Eccentricity
0.00102
Inclination
69.9748°
RAAN
85.0298°
Arg. of periapsis
256.239°
True anomaly
Unknown
Mean anomaly
181.0672°
Eccentric anomaly
Unknown
Mean motion
3.49746 °/min
Orbital period
102.93 mins
BSTAR
0.000060104
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OPS 5712 (P/L 152) 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.
7 mins2025-07-01 03:09:31.950Z8.668° NNE2025-07-01 03:13:31.950Z53.57° ENE17.724°2025-07-01 03:16:31.950Z86.768° E
10 mins2025-07-01 04:54:31.950Z331.205° NNW2025-07-01 04:59:31.950Z220.347° SW43.924°2025-07-01 05:04:31.950Z164.158° S
9 mins2025-07-01 18:11:31.950Z161.765° S2025-07-01 18:15:31.950Z99.251° ESE30.926°2025-07-01 18:20:31.950Z41.323° NE
9 mins2025-07-01 19:56:31.950Z246.276° WSW2025-07-01 20:00:31.950Z300.757° NW29.202°2025-07-01 20:05:31.950Z5.382° NNE
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