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OPS 7613 (P/L 1), 4256

Orbit data source: Space-Track

OPS 7613 (P/L 1), 4256 is a payload satellite owned by NRL (US) in LEO that was launched on Tue, 30 Sep 1969 UTC via a THORAD SLV-2G 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/4256?theme=dark&initialShowStats=false

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Identifier

4256, 1969-082B

Orbit

LEO

Country

Related business

United States Navy (US)

Manufacturer

NRL

Mission

Spacecraft

Bus & Motor

NRL 24"?, Unknown motor

Mass

23 kg wet, 23 kg dry

Launch date (UTC)

1969-09-30 (57 years ago)

Launch vehicle

THORAD SLV-2G 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: 21 hours ago

TLE from 21 hours ago

0 OPS 7613 (P/L 1)
1 04256U 69082B   26093.53075982  .00000155  00000-0  14355-3 0  9993
2 04256  70.0075 125.3950 0019008 171.5308 188.6124 13.99176417880022

Epoch: 2026-04-03T12:44Z

TLE epoch observation values (Epoch: 2026-04-03T12:44:17.648Z)

Latitude

-0.00002°

Longitude

102.4579°

Altitude

912.639 km

Speed

7.389 km/s

True Right ascension

08h 21m 34s

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

15:21:38

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

908.512 km

Perigee altitude

880.864 km

Semi-major axis

7,272.825 km

Eccentricity

0.0019

Inclination

70.0075°

RAAN

125.395°

Arg. of periapsis

171.5308°

True anomaly

188.57986°

Mean anomaly

188.6124°

Eccentric anomaly

188.59612°

Mean motion

3.49936 °/min

Orbital period

102.88 mins

BSTAR

0.00014355

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Other satellites on launch #82 in the year 1969 (1969-09-30 UTC)

THORAD AGENA D DEB, 4894 (Decayed)

THORAD AGENA D DEB, 4190 (Decayed)

THORAD AGENA D DEB, 5271 (Decayed)

THORAD AGENA D DEB, 5755

THORAD AGENA D DEB, 4435

THORAD AGENA D DEB, 4155

THORAD AGENA D DEB, 4530 (Decayed)

THORAD AGENA D DEB, 4475 (Decayed)

THORAD AGENA D DEB, 4135

THORAD AGENA D DEB, 4218

THORAD AGENA D DEB, 4149

THORAD AGENA D DEB, 4171

THORAD AGENA D DEB, 4144

THORAD AGENA D DEB, 18616

THORAD AGENA D DEB, 5752 (Decayed)

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OPS 7613 (P/L 1) 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.
7 mins	2026-04-04 11:35:14.724Z	7.271° NNE	2026-04-04 11:39:14.724Z	52.836° ENE	18.381°	2026-04-04 11:42:14.724Z	87.605° E
10 mins	2026-04-04 13:20:14.724Z	329.592° NNW	2026-04-04 13:25:14.724Z	226.875° WSW	43.097°	2026-04-04 13:30:14.724Z	166.795° S
9 mins	2026-04-05 02:36:14.724Z	168.086° S	2026-04-05 02:40:14.724Z	113.826° SE	32.414°	2026-04-05 02:45:14.724Z	42.758° NE
8 mins	2026-04-05 04:22:14.724Z	251.486° W	2026-04-05 04:26:14.724Z	309.472° NW	27.836°	2026-04-05 04:30:14.724Z	0.918° NNE

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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 7613 (P/L 1), 4256 on other resources

View OPS 7613 (P/L 1), 4256 on NASA - NSSDCA Website

View OPS 7613 (P/L 1), 4256 on Heavens-Above

View OPS 7613 (P/L 1), 4256 on Keep Track

View OPS 7613 (P/L 1), 4256 on Celestrak

View OPS 7613 (P/L 1), 4256 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 7613 (P/L 1), 4256

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-04-03T12:44:17.648Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #82 in the year 1969 (1969-09-30 UTC)

OPS 7613 (P/L 1) Visibility forecast

Co-orbital & Co-planar RSOs

Check out OPS 7613 (P/L 1), 4256 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 21 hours ago