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SECOR 1B, 729

Orbit data source: Space-Track

SECOR 1B, 729 is an American payload satellite in LEO that was launched on Sat, 11 Jan 1964 UTC via a THOR SLV-2A 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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Identifier
729, 1964-001C
Orbit
LEO
Last TLE update
3 days ago
Origin
Manufacturer
ITT
Mission
Defense Geodetic
Bus & Motor
SECOR, Unknown motor
Mass
18 kg wet, 18 kg dry
Launch date (UTC)
1964-01-11 (61 years ago)
Launch vehicle
THOR SLV-2A AGENA D
Launch site
Air Force Western Test Range (AFWTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Box, 0.36 m
Radar Cross Section
0.104 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 3 days ago
0 SECOR 1B
1   729U 64001C   25107.39613087  .00000044  00000-0  72233-4 0  9990
2   729  69.8983 126.1817 0016851 263.9488  95.9696 13.95165426117870
Epoch: 2025-04-17T09:30Z
Definitive object data (Epoch: 2025-04-17T09:30:25.707Z)
Latitude
-0.00004°
Longitude
137.80594°
Altitude
914.187 km
Speed
7.395 km/s
True Right ascension
08h 24m 43s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at TLE epoch
Visualization TLE readout
Latitude
65.29793°
Longitude
-175.43774°
Altitude
933.468 km
Speed
7.385 km/s
Apparent Right ascension
16h 16m 21s
Apparent Declination
27° 17' 56"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
06:41:28
Azimuth
32.944° NE
Elevation
-14.782°
Doppler factor
1
Orbital elements
Apogee altitude
920.918 km
Perigee altitude
896.36 km
Semi-major axis
7,286.776 km
Eccentricity
0.0016851
Inclination
69.8983°
RAAN
126.1817°
Arg. of periapsis
263.9488°
True anomaly
96.16161°
Mean anomaly
95.9696°
Eccentric anomaly
96.06561°
Mean motion
3.48931 °/min
BSTAR
0.000072233
Orbital period
103.17 mins
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Other satellites on launch #1 in the year 1964 (1964-01-11 UTC)

SECOR 1B Visibility forecast

Observer location: undefined°, undefined°

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.
10 mins2025-04-20 01:16:38.113Z163.291° S2025-04-20 01:21:38.113Z103.813° ESE27.477°2025-04-20 01:26:38.113Z45.449° ENE
10 mins2025-04-20 03:02:38.113Z238.18° WSW2025-04-20 03:07:38.113Z314.054° NW32.431°2025-04-20 03:12:38.113Z10.578° NNE
7 mins2025-04-20 10:20:38.113Z17.988° NNE2025-04-20 10:23:38.113Z56.071° ENE19.792°2025-04-20 10:27:38.113Z98.216° ESE
10 mins2025-04-20 12:04:38.113Z328.106° NNW2025-04-20 12:09:38.113Z236.776° WSW42.525°2025-04-20 12:14:38.113Z169.232° S
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