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OPS 5712 (P/L 153), 2874

Orbit data source: Space-Track

OPS 5712 (P/L 153), 2874 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/2874?theme=dark&initialShowStats=false

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Identifier

2874, 1967-053H

Orbit

LEO

Country

Related business

National Reconnaissance Office (US)

Manufacturer

NRL

Mission

Operational spacecraft

Bus & Motor

NRL MULTI, Unknown motor

Mass

77 kg wet, 77 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

ELL + ANT, 1.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 14 hours ago

TLE from 14 hours ago

0 OPS 5712 (P/L 153)
1 02874U 67053H   26267.87458788 -.00000010  00000-0  31269-4 0  9997
2 02874  69.9718 261.6298 0004901  51.3537 308.8006 13.96840166 20714

Epoch: 2026-09-24T20:59Z

TLE epoch observation values (Epoch: 2026-09-24T20:59:24.392Z)

Latitude

-0.00012°

Longitude

-56.92697°

Altitude

904.833 km

Speed

7.401 km/s

True Right ascension

17h 26m 31s

True Declination

0° 00' 00"

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

04:27:12

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

906.371 km

Perigee altitude

899.235 km

Semi-major axis

7,280.94 km

Eccentricity

0.00049

Inclination

69.9718°

RAAN

261.6298°

Arg. of periapsis

51.3537°

True anomaly

308.75681°

Mean anomaly

308.8006°

Eccentric anomaly

308.77871°

Mean motion

3.49351 °/min

Orbital period

103.05 mins

BSTAR

0.000031269

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

SURCAL 150B, 2909 (Decayed)

P/L 153 DEB, 19245

OPS 5712 (P/L 152), 2873

OPS 5712 (P/L 160), 2826

THOR AGENA D R/B, 2825

P/L 153 DEB, 39247 (Decayed)

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OPS 5712 (P/L 153) Visibility forecast

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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.
11 mins	2026-09-25 11:18:31.752Z	325.454° NNW	2026-09-25 11:24:31.752Z	236.616° WSW	51.636°	2026-09-25 11:29:31.752Z	177.387° S
10 mins	2026-09-26 00:36:31.752Z	181.514° SSW	2026-09-26 00:40:31.752Z	127.252° SE	53.858°	2026-09-26 00:46:31.752Z	33.793° NE
8 mins	2026-09-26 02:23:31.752Z	264.763° W	2026-09-26 02:26:31.752Z	302.038° NW	24.216°	2026-09-26 02:31:31.752Z	0.256° NNE
9 mins	2026-09-26 09:38:31.752Z	1.265° NNE	2026-09-26 09:42:31.752Z	57.719° ENE	32.887°	2026-09-26 09:47:31.752Z	118.033° SE

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

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Check out OPS 5712 (P/L 153), 2874 on other resources

View OPS 5712 (P/L 153), 2874 on NASA - NSSDCA Website

View OPS 5712 (P/L 153), 2874 on Heavens-Above

View OPS 5712 (P/L 153), 2874 on Keep Track

View OPS 5712 (P/L 153), 2874 on Celestrak

View OPS 5712 (P/L 153), 2874 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 153), 2874

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-09-24T20:59:24.392Z)

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 153) Visibility forecast

Co-orbital & Co-planar RSOs

Check out OPS 5712 (P/L 153), 2874 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 14 hours ago