TELSTAR 2 (A-41), 573
Orbit data source: Space-Track
TELSTAR 2 (A-41), 573 is a payload satellite owned by AT&T (US) in HEO that was launched on Tue, 07 May 1963 UTC via a THOR DELTA B 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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573 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
79 kg wet, 79 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: 2 days ago
TLE from 2 days ago
0 TELSTAR 2 (A-41)
1 00573U 63013A 25291.57450956 -.00000039 00000-0 -38778-3 0 9998
2 00573 42.7526 239.5315 4016253 216.8913 340.5910 6.39266788570696Epoch: 2025-10-18T13:47Z
TLE epoch observation values (Epoch: 2025-10-18T13:47:17.625Z)
Latitude
6.49267°
Longitude
178.36213°
Altitude
1,681.54 km
Speed
8.15 km/s
True Right ascension
03h 29m 57s
True Declination
6° 27' 31"
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
08:33:40
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
10,812.702 km
Perigee altitude
960.888 km
Semi-major axis
12,264.932 km
Eccentricity
0.40163
Inclination
42.7526°
RAAN
239.5315°
Arg. of periapsis
216.8913°
True anomaly
313.44909°
Mean anomaly
340.591°
Eccentric anomaly
328.60277°
Mean motion
1.59788 °/min
Orbital period
225.3 mins
BSTAR
-0.00038778
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Other satellites on launch #13 in the year 1963 (1963-05-07 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 2 (A-41) 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. |
|---|---|---|---|---|---|---|---|
| 115 mins | 2025-10-20 19:23:04.500Z | 167.109° S | 2025-10-20 20:20:04.500Z | 108.634° ESE | 32.281° | 2025-10-20 21:18:04.500Z | 61.255° ENE |
| 128 mins | 2025-10-20 23:22:04.500Z | 230.823° WSW | 2025-10-21 00:45:04.500Z | 166.096° S | 44.976° | 2025-10-21 01:30:04.500Z | 75.591° E |
| 84 mins | 2025-10-21 04:06:04.500Z | 283.845° WNW | 2025-10-21 05:13:04.500Z | 220.492° SW | 44.791° | 2025-10-21 05:30:04.500Z | 122.794° SE |
| 19 mins | 2025-10-21 08:58:04.500Z | 287.118° WNW | 2025-10-21 09:10:04.500Z | 257.524° W | 15.781° | 2025-10-21 09:17:04.500Z | 226.083° WSW |
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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