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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
8 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 8 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
-52.27002°
Longitude
169.67382°
Altitude
913.912 km
Speed
7.397 km/s
Apparent Right ascension
04h 37m 07s
Apparent Declination
-46° 59' 50"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
17:24:10
Azimuth
133.618° SE
Elevation
-78.929°
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.
10 mins2025-07-01 18:10:29.133Z168.098° S2025-07-01 18:15:29.133Z100.307° ESE30.964°2025-07-01 18:20:29.133Z41.521° NE
9 mins2025-07-01 19:56:29.133Z245.959° WSW2025-07-01 20:00:29.133Z299.786° NW29.183°2025-07-01 20:05:29.133Z5.122° NNE
7 mins2025-07-02 03:12:29.133Z10.851° NNE2025-07-02 03:15:29.133Z48.285° ENE21.668°2025-07-02 03:19:29.133Z97.376° ESE
9 mins2025-07-02 04:57:29.133Z322.683° NNW2025-07-02 05:01:29.133Z253.419° W40.255°2025-07-02 05:06:29.133Z175.161° S
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