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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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
SPHERE + ANT, 0.8 m
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 3 days ago
TLE from 3 days ago
0 TELSTAR 2 (A-41)
1 00573U 63013A 26210.64660501 .00000008 00000-0 65694-3 0 9998
2 00573 42.7633 299.8058 4012902 202.5704 334.7764 6.39278923588869Epoch: 2026-07-29T15:31Z
TLE epoch observation values (Epoch: 2026-07-29T15:31:06.672Z)
Latitude
23.39746°
Longitude
-88.00811°
Altitude
2,113.193 km
Speed
7.837 km/s
True Right ascension
06h 08m 16s
True Declination
23° 17' 33"
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
17:10:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
10,808.372 km
Perigee altitude
964.904 km
Semi-major axis
12,264.775 km
Eccentricity
0.40129
Inclination
42.7633°
RAAN
299.8058°
Arg. of periapsis
202.5704°
True anomaly
301.77416°
Mean anomaly
334.7764°
Eccentric anomaly
319.99607°
Mean motion
1.59792 °/min
Orbital period
225.29 mins
BSTAR
0.00065694
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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. |
|---|---|---|---|---|---|---|---|
| 117 mins | 2026-08-01 04:49:25.986Z | 173.881° S | 2026-08-01 05:55:25.986Z | 114.817° SE | 34.474° | 2026-08-01 06:46:25.986Z | 63.424° ENE |
| 119 mins | 2026-08-01 08:54:25.986Z | 234.314° WSW | 2026-08-01 10:21:25.986Z | 153.845° SSE | 44.999° | 2026-08-01 10:53:25.986Z | 75.939° E |
| 62 mins | 2026-08-01 13:49:25.986Z | 287.095° WNW | 2026-08-01 14:39:25.986Z | 206.003° SW | 44.608° | 2026-08-01 14:51:25.986Z | 124.788° SE |
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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