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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: 13 hours ago

TLE from 13 hours ago

0 OPS 7613 (P/L 3)
1  4259U 69082D   26099.88292457  .00000037  00000-0  66133-4 0  9999
2  4259  70.0138 281.3030 0023041 241.2435 223.2431 13.95116750972158

Epoch: 2026-04-09T21:11Z

TLE epoch observation values (Epoch: 2026-04-09T21:11:24.682Z)

Latitude

65.69592°

Longitude

-107.91362°

Altitude

933.748 km

Speed

7.385 km/s

True Right ascension

03h 12m 15s

True Declination

65° 34' 11"

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

16:36:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

925.587 km

Perigee altitude

892.007 km

Semi-major axis

7,286.934 km

Eccentricity

0.0023

Inclination

70.0138°

RAAN

281.303°

Arg. of periapsis

241.2435°

True anomaly

223.06259°

Mean anomaly

223.2431°

Eccentric anomaly

223.15281°

Mean motion

3.4892 °/min

Orbital period

103.18 mins

BSTAR

0.000066133

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

THORAD AGENA D DEB, 5362 (Decayed)

THORAD AGENA D DEB, 4450 (Decayed)

THORAD AGENA D DEB, 4531 (Decayed)

THORAD AGENA D DEB, 4113 (Decayed)

THORAD AGENA D DEB, 4892 (Decayed)

THORAD AGENA D DEB, 5271 (Decayed)

THORAD AGENA D DEB, 4318 (Decayed)

THORAD AGENA D DEB, 5752 (Decayed)

THORAD AGENA D DEB, 4176 (Decayed)

THORAD AGENA D DEB, 4464 (Decayed)

THORAD AGENA D DEB, 4240 (Decayed)

THORAD AGENA D DEB, 4459 (Decayed)

THORAD AGENA D DEB, 4533 (Decayed)

THORAD AGENA D DEB, 4115 (Decayed)

THORAD AGENA D DEB, 4179 (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.
8 mins	2026-04-10 12:17:37.281Z	148.628° SSE	2026-04-10 12:21:37.281Z	103.304° ESE	21.683°	2026-04-10 12:25:37.281Z	56.605° ENE
10 mins	2026-04-10 14:02:37.281Z	227.726° WSW	2026-04-10 14:06:37.281Z	285.742° WNW	38.214°	2026-04-10 14:12:37.281Z	14.794° NNE
5 mins	2026-04-10 21:20:37.281Z	21.014° NNE	2026-04-10 21:22:37.281Z	43.139° NE	15.712°	2026-04-10 21:25:37.281Z	76.325° E
10 mins	2026-04-10 23:04:37.281Z	335.412° NNW	2026-04-10 23:09:37.281Z	165.039° S	44.92°	2026-04-10 23:14:37.281Z	157.538° S

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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: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2026-04-09T21:11:24.682Z)

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: 13 hours ago