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SECOR 3, 1208

Orbit data source: Space-Track

SECOR 3, 1208 is an American payload satellite in LEO that was launched on Tue, 09 Mar 1965 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 src="https://www.satcat.com/sats-embedded/1208?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/1208?theme=dark&initialShowStats=false

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Identifier

1208, 1965-016E

Orbit

LEO

Country

Related business

United States Army (US)

Manufacturer

ITT

Mission

Spacecraft

Bus & Motor

SECOR, Unknown motor

Mass

18 kg wet, 18 kg dry

Launch date (UTC)

1965-03-09 (61 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

Unknown

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 SECOR 3
1  1208U 65016E   26091.14823715  .00000062  00000-0  83559-4 0  9990
2  1208  70.0819 348.1876 0020812 194.2944 318.2710 13.96068031108414

Epoch: 2026-04-01T03:33Z

TLE epoch observation values (Epoch: 2026-04-01T03:33:27.689Z)

Latitude

25.85974°

Longitude

-84.75492°

Altitude

898.685 km

Speed

7.411 km/s

True Right ascension

10h 32m 30s

True Declination

25° 43' 39"

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

23:01:00

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

920.636 km

Perigee altitude

890.319 km

Semi-major axis

7,283.615 km

Eccentricity

0.00208

Inclination

70.0819°

RAAN

348.1876°

Arg. of periapsis

194.2944°

True anomaly

318.11195°

Mean anomaly

318.271°

Eccentric anomaly

318.19151°

Mean motion

3.49159 °/min

Orbital period

103.11 mins

BSTAR

0.000083559

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Other satellites on launch #16 in the year 1965 (1965-03-09 UTC)

THOR AGENA D R/B, 1245

OPS 4988 (GREB 6), 1271

SURCAL 2, 1310 (Decayed)

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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SECOR 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.
11 mins	2026-04-01 18:25:08.745Z	197.645° SSW	2026-04-01 18:30:08.745Z	156.587° SSE	44.161°	2026-04-01 18:36:08.745Z	26.888° NE
6 mins	2026-04-01 20:14:08.745Z	280.708° WNW	2026-04-01 20:17:08.745Z	315.496° NNW	17.288°	2026-04-01 20:20:08.745Z	348.166° N
9 mins	2026-04-02 03:28:08.745Z	352.69° N	2026-04-02 03:32:08.745Z	49.601° ENE	35.19°	2026-04-02 03:37:08.745Z	128.326° SE
8 mins	2026-04-02 05:14:08.745Z	303.741° NW	2026-04-02 05:18:08.745Z	251.19° W	23.82°	2026-04-02 05:22:08.745Z	205.118° SW
4 mins	2026-04-02 16:49:08.745Z	113.328° SE	2026-04-02 16:50:08.745Z	102.252° ESE	14.591°	2026-04-02 16:53:08.745Z	70.422° E

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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 SECOR 3, 1208 on other resources

View SECOR 3, 1208 on NASA - NSSDCA Website

View SECOR 3, 1208 on Heavens-Above

View SECOR 3, 1208 on Keep Track

View SECOR 3, 1208 on Celestrak

View SECOR 3, 1208 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

SECOR 3, 1208

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: 2026-04-01T03:33:27.689Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #16 in the year 1965 (1965-03-09 UTC)

SECOR 3 Visibility forecast

Co-orbital & Co-planar RSOs

Check out SECOR 3, 1208 on other resources

Documentation

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