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

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
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 OPS 5712 (P/L 152)
1 02873U 67053G   25260.51815113  .00000062  00000-0  80898-4 0  9996
2 02873  69.9723 276.0903 0006522 171.4668 265.5540 13.98438466970390

Epoch: 2025-09-17T12:26Z

TLE epoch observation values (Epoch: 2025-09-17T12:26:08.257Z)

Latitude

66.34356°

Longitude

148.73155°

Altitude

910.436 km

Speed

7.403 km/s

True Right ascension

22h 07m 50s

True Declination

66° 13' 10"

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

22:00:23

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

901.996 km

Perigee altitude

892.506 km

Semi-major axis

7,275.388 km

Eccentricity

0.00065

Inclination

69.9723°

RAAN

276.0903°

Arg. of periapsis

171.4668°

True anomaly

265.47949°

Mean anomaly

265.554°

Eccentric anomaly

265.51675°

Mean motion

3.49751 °/min

Orbital period

102.93 mins

BSTAR

0.000080898

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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)

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.
8 mins	2025-09-18 10:56:20.847Z	4.783° NNE	2025-09-18 11:00:20.847Z	55.838° ENE	23.407°	2025-09-18 11:04:20.847Z	103.957° ESE
10 mins	2025-09-18 12:41:20.847Z	321.69° NNW	2025-09-18 12:46:20.847Z	235.586° WSW	37.383°	2025-09-18 12:51:20.847Z	177.971° S
10 mins	2025-09-19 01:57:20.847Z	181.722° SSW	2025-09-19 02:02:20.847Z	90.046° ESE	38.827°	2025-09-19 02:07:20.847Z	33.957° NE
8 mins	2025-09-19 03:44:20.847Z	265.293° W	2025-09-19 03:47:20.847Z	303.067° NW	22.304°	2025-09-19 03:52:20.847Z	0.804° NNE

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 ascending 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 ascending 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: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2025-09-17T12:26:08.257Z)

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: 17 hours ago