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OPS 7613 (P/L 3), 4259

Orbit data source: Space-Track

OPS 7613 (P/L 3), 4259 is an American payload satellite 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/4259?theme=dark&initialShowStats=false

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Identifier

4259, 1969-082D

Orbit

LEO

Country

Related business

National Reconnaissance Office (US)

Manufacturer

NRL

Mission

Spacecraft

Bus & Motor

NRL MULTI, Unknown motor

Mass

100 kg wet, 100 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 shape, 0.7 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 3 days ago

TLE from 3 days ago

0 OPS 7613 (P/L 3)
1  4259U 69082D   26171.30479619 -.00000010  00000-0  31247-4 0  9994
2  4259  70.0140 128.9521 0019277 151.5216  11.7199 13.95124863982110

Epoch: 2026-06-20T07:18Z

TLE epoch observation values (Epoch: 2026-06-20T07:18:54.390Z)

Latitude

15.67013°

Longitude

-75.12081°

Altitude

898.602 km

Speed

7.411 km/s

True Right ascension

20h 12m 30s

True Declination

15° 34' 58"

Sunlit

Object was in full shadow 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

12:51:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

922.815 km

Perigee altitude

894.722 km

Semi-major axis

7,286.906 km

Eccentricity

0.00193

Inclination

70.014°

RAAN

128.9521°

Arg. of periapsis

151.5216°

True anomaly

11.76488°

Mean anomaly

11.7199°

Eccentric anomaly

11.74238°

Mean motion

3.48922 °/min

Orbital period

103.17 mins

BSTAR

0.000031247

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

THORAD AGENA D DEB, 4453

THORAD AGENA D DEB, 5521 (Decayed)

THORAD AGENA D DEB, 4112 (Decayed)

THORAD AGENA D DEB, 4449

THORAD AGENA D DEB, 4938

THORAD AGENA D DEB, 4939 (Decayed)

THORAD AGENA D DEB, 4269 (Decayed)

THORAD AGENA D DEB, 4470 (Decayed)

THORAD AGENA D DEB, 4245 (Decayed)

THORAD AGENA D DEB, 5900 (Decayed)

THORAD AGENA D DEB, 6750 (Decayed)

THORAD AGENA D DEB, 19028 (Decayed)

THORAD AGENA D DEB, 19358 (Decayed)

THORAD AGENA D DEB, 4520 (Decayed)

THORAD AGENA D DEB, 4325 (Decayed)

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OPS 7613 (P/L 3) 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.
9 mins	2026-06-23 07:22:44.627Z	348.449° N	2026-06-23 07:26:44.627Z	53.108° ENE	39.721°	2026-06-23 07:31:44.627Z	137.473° SSE
6 mins	2026-06-23 09:09:44.627Z	289.054° WNW	2026-06-23 09:11:44.627Z	264.219° W	19.353°	2026-06-23 09:15:44.627Z	217.289° SW
6 mins	2026-06-23 20:42:44.627Z	131.298° SE	2026-06-23 20:45:44.627Z	95.026° ESE	18.337°	2026-06-23 20:48:44.627Z	62.179° ENE
10 mins	2026-06-23 22:25:44.627Z	219.9° SW	2026-06-23 22:30:44.627Z	311.855° NW	41.023°	2026-06-23 22:35:44.627Z	16.586° 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 3), 4259 on other resources

View OPS 7613 (P/L 3), 4259 on NASA - NSSDCA Website

View OPS 7613 (P/L 3), 4259 on Heavens-Above

View OPS 7613 (P/L 3), 4259 on Keep Track

View OPS 7613 (P/L 3), 4259 on Celestrak

View OPS 7613 (P/L 3), 4259 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 3), 4259

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-06-20T07:18:54.390Z)

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 3) Visibility forecast

Co-orbital & Co-planar RSOs

Check out OPS 7613 (P/L 3), 4259 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 3 days ago