Showing default

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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/2873?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

2873, 1967-053G

Orbit

LEO

Country

Related business

National Reconnaissance Office (US)

Manufacturer

NRL

Mission

Spacecraft

Bus & Motor

NRL 24", Unknown motor

Mass

52 kg wet, 52 kg dry

Launch date (UTC)

1967-05-31 (59 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

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 OPS 5712 (P/L 152)
1  2873U 67053G   26130.78157625  .00000033  00000-0  60325-4 0  9990
2  2873  69.9717 130.4343 0009298 218.6097 315.3441 13.98518894  3279

Epoch: 2026-05-10T18:45Z

TLE epoch observation values (Epoch: 2026-05-10T18:45:28.187Z)

Latitude

5.68006°

Longitude

158.42022°

Altitude

895.874 km

Speed

7.407 km/s

True Right ascension

20h 33m 28s

True Declination

5° 38' 49"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

08:33:18

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

903.737 km

Perigee altitude

890.208 km

Semi-major axis

7,275.109 km

Eccentricity

0.00093

Inclination

69.9717°

RAAN

130.4343°

Arg. of periapsis

218.6097°

True anomaly

315.26915°

Mean anomaly

315.3441°

Eccentric anomaly

315.30663°

Mean motion

3.49771 °/min

Orbital period

102.92 mins

BSTAR

0.000060325

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

P/L 153 DEB, 39247 (Decayed)

OPS 5712 (P/L 153), 2874

THOR AGENA D R/B, 2825

TIMATION 1, 2847

OPS 5712 (P/L 160), 2826

SURCAL 150B, 2909 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

OPS 5712 (P/L 152) Visibility forecast

Loading observer location...
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	2026-05-11 00:54:32.557Z	176.35° S	2026-05-11 00:59:32.557Z	100.202° ESE	35.982°	2026-05-11 01:04:32.557Z	37.576° NE
8 mins	2026-05-11 02:41:32.557Z	259.722° W	2026-05-11 02:44:32.557Z	299.393° NW	24.963°	2026-05-11 02:49:32.557Z	1.519° NNE
8 mins	2026-05-11 09:56:32.557Z	7.258° NNE	2026-05-11 09:59:32.557Z	47.086° ENE	25.183°	2026-05-11 10:04:32.557Z	110.108° ESE
9 mins	2026-05-11 11:41:32.557Z	316.662° NNW	2026-05-11 11:45:32.557Z	252.844° W	35.515°	2026-05-11 11:50:32.557Z	183.476° SSW

Items per page:

1–4 of 4 items

of 1 page

Co-orbital & Co-planar RSOs

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

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

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.

OPS 5712 (P/L 152), 2873

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-05-10T18:45:28.187Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

OPS 5712 (P/L 152) Visibility forecast

Co-orbital & Co-planar RSOs

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

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago