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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

15 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 15 hours ago

0 OPS 5712 (P/L 152)
1  2873U 67053G   25224.12993007  .00000049  00000-0  71606-4 0  9994
2  2873  69.9763 354.2917 0008701 213.7184 319.2028 13.98429563965965

Epoch: 2025-08-12T03:07Z

TLE epoch observation values (Epoch: 2025-08-12T03:07:05.958Z)

Latitude

6.64637°

Longitude

164.26881°

Altitude

896.143 km

Speed

7.407 km/s

True Right ascension

11h 27m 28s

True Declination

6° 36' 28"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-2.95293°

Longitude

166.37427°

Altitude

896.489 km

Speed

7.407 km/s

Apparent Right ascension

14h 22m 19s

Apparent Declination

-44° 07' 44"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

09:02:22

Azimuth

130.984° SE

Elevation

-20.553°

Doppler factor

Orbital elements

Apogee altitude

903.612 km

Perigee altitude

890.951 km

Semi-major axis

7,275.419 km

Eccentricity

0.00087

Inclination

69.9763°

RAAN

354.2917°

Arg. of periapsis

213.7184°

True anomaly

319.1376°

Mean anomaly

319.2028°

Eccentric anomaly

319.17021°

Mean motion

3.49749 °/min

Orbital period

102.93 mins

BSTAR

0.000071606

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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°
Set Observer location

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	2025-08-12 20:01:59.685Z	330.674° NNW	2025-08-12 20:06:59.685Z	256.79° W	43.68°	2025-08-12 20:11:59.685Z	166.251° S
9 mins	2025-08-13 09:18:59.685Z	165.901° S	2025-08-13 09:22:59.685Z	108.092° ESE	32.017°	2025-08-13 09:27:59.685Z	42.193° NE
8 mins	2025-08-13 11:04:59.685Z	252.226° W	2025-08-13 11:08:59.685Z	313.051° NW	28.141°	2025-08-13 11:12:59.685Z	2.455° NNE
8 mins	2025-08-13 18:19:59.685Z	7.47° NNE	2025-08-13 18:23:59.685Z	58.768° ENE	22.129°	2025-08-13 18:27:59.685Z	103.518° ESE

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.