TELSTAR 1, 340
Orbit data source: Space-Track
TELSTAR 1, 340 is a payload satellite owned by AT&T (US) in LEO that was launched on Tue, 10 Jul 1962 UTC via a THOR DELTA launch vehicle from the Air Force Eastern Test Range (AFETR). 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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340 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
AT&T/BTL
Mission
Spacecraft
Bus & Motor
TSX, Unknown motor
Mass
77 kg wet, 77 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 TELSTAR 1
1 00340U 62029A 25296.72773314 -.00000083 00000-0 -30697-3 0 9995
2 00340 44.8022 40.0146 2424276 32.1774 91.5164 9.12884410110853Epoch: 2025-10-23T17:27Z
TLE epoch observation values (Epoch: 2025-10-23T17:27:56.143Z)
Latitude
20.49578°
Longitude
-96.37497°
Altitude
3,896.689 km
Speed
6.034 km/s
True Right ascension
13h 11m 58s
True Declination
20° 25' 03"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
13:05:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,638.598 km
Perigee altitude
949.088 km
Semi-major axis
9,671.98 km
Eccentricity
0.24243
Inclination
44.8022°
RAAN
40.0146°
Arg. of periapsis
32.1774°
True anomaly
118.08423°
Mean anomaly
91.5164°
Eccentric anomaly
104.93712°
Mean motion
2.28176 °/min
Orbital period
157.77 mins
BSTAR
-0.00030697
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Other satellites on launch #29 in the year 1962 (1962-07-10 UTC)
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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.TELSTAR 1 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. |
|---|---|---|---|---|---|---|---|
| 33 mins | 2025-10-24 19:34:35.152Z | 273.909° WNW | 2025-10-24 19:47:35.152Z | 228.478° WSW | 22.61° | 2025-10-24 20:07:35.152Z | 186.721° SSW |
| 4 mins | 2025-10-25 08:13:35.152Z | 149.556° SSE | 2025-10-25 08:15:35.152Z | 126.247° SE | 14.125° | 2025-10-25 08:17:35.152Z | 104.693° ESE |
| 13 mins | 2025-10-25 10:55:35.152Z | 245.538° WSW | 2025-10-25 10:59:35.152Z | 80.082° E | 44.996° | 2025-10-25 11:08:35.152Z | 67.836° E |
| 21 mins | 2025-10-25 13:40:35.152Z | 289.086° WNW | 2025-10-25 13:46:35.152Z | 8.755° NNE | 43.164° | 2025-10-25 14:01:35.152Z | 93.651° ESE |
| 33 mins | 2025-10-25 16:25:35.152Z | 289.875° WNW | 2025-10-25 16:35:35.152Z | 203.534° SW | 42.809° | 2025-10-25 16:58:35.152Z | 136.838° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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