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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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ISO8601 Format

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: 8 hours ago

TLE from 8 hours ago

0 SECOR 3
1  1208U 65016E   25343.15025264  .00000098  00000-0  10938-3 0  9992
2  1208  70.0791 228.8526 0021512 328.4059 147.3602 13.96042359 92648

Epoch: 2025-12-09T03:36Z

TLE epoch observation values (Epoch: 2025-12-09T03:36:21.828Z)

Latitude

57.86226°

Longitude

-118.39783°

Altitude

929.88 km

Speed

7.386 km/s

True Right ascension

00h 55m 19s

True Declination

57° 42' 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

10:18:00

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

921.236 km

Perigee altitude

889.898 km

Semi-major axis

7,283.704 km

Eccentricity

0.00215

Inclination

70.0791°

RAAN

228.8526°

Arg. of periapsis

328.4059°

True anomaly

147.49286°

Mean anomaly

147.3602°

Eccentric anomaly

147.42656°

Mean motion

3.49152 °/min

Orbital period

103.11 mins

BSTAR

0.00010938

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

SOLRAD 7B, 1291

SURCAL 2, 1310 (Decayed)

PORCUPINE 1, 1272

THOR AGENA D R/B, 1245

GGSE 3, 1292

GGSE 2, 1244

OPS 4988 (GREB 6), 1271

OSCAR 3, 1293

OPS 4988 DEB, 12099

GGSE 3 DEB, 44043

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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.
8 mins	2025-12-09 16:55:31.663Z	153.304° SSE	2025-12-09 16:59:31.663Z	105.833° ESE	23.748°	2025-12-09 17:03:31.663Z	55.16° ENE
10 mins	2025-12-09 18:40:31.663Z	232.09° WSW	2025-12-09 18:44:31.663Z	286.152° WNW	35.295°	2025-12-09 18:50:31.663Z	12.591° NNE
6 mins	2025-12-10 01:58:31.663Z	22.818° NE	2025-12-10 02:00:31.663Z	46.223° ENE	17.246°	2025-12-10 02:04:31.663Z	88.964° E
10 mins	2025-12-10 03:42:31.663Z	332.648° NNW	2025-12-10 03:47:31.663Z	192.253° SSW	43.898°	2025-12-10 03:52:31.663Z	161.854° 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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Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

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: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2025-12-09T03:36:21.828Z)

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: 8 hours ago