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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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https://www.satcat.com/sats-embedded/2873?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

2873, 1967-053G

Orbit

LEO

Last TLE update

10 hours ago

Origin

National Reconnaissance Office (US)

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, 9.0 m

Radar Cross Section

1.267 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 10 hours ago

0 OPS 5712 (P/L 152)
1 02873U 67053G   25199.56861137  .00000047  00000-0  70351-4 0  9995
2 02873  69.9742  47.0784 0009687 238.8230 156.1335 13.98423979961875

Epoch: 2025-07-18T13:38Z

TLE epoch observation values (Epoch: 2025-07-18T13:38:48.022Z)

Latitude

32.68165°

Longitude

-80.78956°

Altitude

909.326 km

Speed

7.397 km/s

True Right ascension

04h 02m 06s

True Declination

32° 31' 44"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-69.69473°

Longitude

163.38172°

Altitude

918.479 km

Speed

7.395 km/s

Apparent Right ascension

22h 52m 22s

Apparent Declination

-58° 40' 44"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

12:07:28

Azimuth

153.758° SSE

Elevation

-67.766°

Doppler factor

Orbital elements

Apogee altitude

904.349 km

Perigee altitude

890.254 km

Semi-major axis

7,275.438 km

Eccentricity

0.00097

Inclination

69.9742°

RAAN

47.0784°

Arg. of periapsis

238.823°

True anomaly

156.17836°

Mean anomaly

156.1335°

Eccentric anomaly

156.15594°

Mean motion

3.49747 °/min

Orbital period

102.93 mins

BSTAR

0.000070351

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Other satellites on launch #53 in the year 1967 (1967-05-31 UTC)

OPS 5712 (P/L 160), 2826

THOR AGENA D R/B, 2825

OPS 5712 (P/L 153), 2874

SURCAL 150B, 2909

P/L 153 DEB, 19245

P/L 153 DEB, 39247 (Decayed)

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 mins	2025-07-19 00:19:53.281Z	349.349° N	2025-07-19 00:24:53.281Z	56.737° ENE	35.062°	2025-07-19 00:29:53.281Z	128.641° SE
8 mins	2025-07-19 02:06:53.281Z	300.602° NW	2025-07-19 02:09:53.281Z	260.916° W	24.401°	2025-07-19 02:14:53.281Z	201.845° SSW
4 mins	2025-07-19 13:39:53.281Z	116.701° SE	2025-07-19 13:41:53.281Z	95.199° ESE	13.403°	2025-07-19 13:43:53.281Z	74.433° E
10 mins	2025-07-19 15:21:53.281Z	208.243° SW	2025-07-19 15:25:53.281Z	246.573° WSW	44.221°	2025-07-19 15:31:53.281Z	22.478° NNE
4 mins	2025-07-19 17:10:53.281Z	295.237° NW	2025-07-19 17:12:53.281Z	317.204° NNW	14.075°	2025-07-19 17:14:53.281Z	338.567° N

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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Check out OPS 5712 (P/L 152), 2873 on other resources

View OPS 5712 (P/L 152), 2873 on NASA - NSSDCA Website

View OPS 5712 (P/L 152), 2873 on Heavens-Above

View OPS 5712 (P/L 152), 2873 on Keep Track

View OPS 5712 (P/L 152), 2873 on Celestrak

View OPS 5712 (P/L 152), 2873 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.