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
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 26061.42440186 .00000006 00000-0 50995-3 0 9999
2 00573 42.7544 97.1631 4006772 21.0320 358.0586 6.39266028579327Epoch: 2026-03-02T10:11Z
TLE epoch observation values (Epoch: 2026-03-02T10:11:08.320Z)
Latitude
10.78794°
Longitude
155.99538°
Altitude
979.466 km
Speed
8.71 km/s
True Right ascension
07h 15m 59s
True Declination
10° 43' 36"
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
06:57:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
10,801.084 km
Perigee altitude
972.521 km
Semi-major axis
12,264.939 km
Eccentricity
0.40068
Inclination
42.7544°
RAAN
97.1631°
Arg. of periapsis
21.032°
True anomaly
355.05138°
Mean anomaly
358.0586°
Eccentric anomaly
356.76183°
Mean motion
1.59788 °/min
Orbital period
225.3 mins
BSTAR
0.00050995
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-03-04 03:32:14.544Z | 154.137° SSE | 2026-03-04 03:35:14.544Z | 121.017° SE | 13.723° | 2026-03-04 03:38:14.544Z | 94.71° ESE |
| 28 mins | 2026-03-04 07:24:14.544Z | 262.987° W | 2026-03-04 07:30:14.544Z | 358.115° N | 44.749° | 2026-03-04 07:52:14.544Z | 80.846° E |
| 76 mins | 2026-03-04 11:20:14.544Z | 288.479° WNW | 2026-03-04 11:34:14.544Z | 209.538° SW | 44.093° | 2026-03-04 12:36:14.544Z | 135.711° SSE |
| 78 mins | 2026-03-04 15:22:14.544Z | 278.345° WNW | 2026-03-04 15:47:14.544Z | 236.829° WSW | 24.46° | 2026-03-04 16:40:14.544Z | 195.471° SSW |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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