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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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Iframe URL

https://www.satcat.com/sats-embedded/2874?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

2874, 1967-053H

Orbit

LEO

Last TLE update

11 hours ago

Origin

National Reconnaissance Office (US)

Manufacturer

NRL

Mission

Operational Defense Sigint

Bus & Motor

NRL MULTI, Unknown motor

Mass

77 kg wet, 77 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

1.399 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 11 hours ago

0 OPS 5712 (P/L 153)
1 02874U 67053H   25199.48771191  .00000002  00000-0  40035-4 0  9994
2 02874  69.9742 110.5260 0009975 270.1336  89.8627 13.96756009960187

Epoch: 2025-07-18T11:42Z

TLE epoch observation values (Epoch: 2025-07-18T11:42:18.309Z)

Latitude

0.00002°

Longitude

-1.58874°

Altitude

907.351 km

Speed

7.399 km/s

True Right ascension

07h 22m 06s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-33.17513°

Longitude

-168.88943°

Altitude

912.653 km

Speed

7.397 km/s

Apparent Right ascension

21h 48m 41s

Apparent Declination

-39° 20' 50"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

11:50:18

Azimuth

98.474° ESE

Elevation

-66.692°

Doppler factor

Orbital elements

Apogee altitude

910.358 km

Perigee altitude

895.832 km

Semi-major axis

7,281.232 km

Eccentricity

0.001

Inclination

69.9742°

RAAN

110.526°

Arg. of periapsis

270.1336°

True anomaly

89.97701°

Mean anomaly

89.8627°

Eccentric anomaly

89.91985°

Mean motion

3.4933 °/min

Orbital period

103.05 mins

BSTAR

0.000040035

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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 152), 2873

SURCAL 150B, 2909

P/L 153 DEB, 19245

P/L 153 DEB, 39247 (Decayed)

OPS 5712 (P/L 153) 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.
8 mins	2025-07-19 03:42:45.532Z	3.37° NNE	2025-07-19 03:46:45.532Z	46.485° ENE	19.573°	2025-07-19 03:50:45.532Z	92.923° ESE
10 mins	2025-07-19 05:28:45.532Z	327.529° NNW	2025-07-19 05:32:45.532Z	272.697° WNW	42.338°	2025-07-19 05:38:45.532Z	168.269° S
9 mins	2025-07-19 18:45:45.532Z	170.79° S	2025-07-19 18:49:45.532Z	114.712° SE	34.095°	2025-07-19 18:54:45.532Z	41.343° NE
9 mins	2025-07-19 20:31:45.532Z	252.227° W	2025-07-19 20:35:45.532Z	305.607° NW	26.698°	2025-07-19 20:40:45.532Z	4.738° NNE

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 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.