RELAY 1 (A-15), 503
Orbit data source: Space-Track
RELAY 1 (A-15), 503 is a payload satellite owned by GSFC (US) that was launched on Thu, 13 Dec 1962 UTC via a THOR DELTA B launch vehicle from the Air Force Eastern Test Range (AFETR). Payloads include a variety of satellites, spacecraft, and rockets 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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503 intel report (Beta)
RELAY 1 (A-15) details
| Identifier | |
| Orbit | Active |
| Last TLE update | 1 day ago |
| Origin | |
| Manufacturer | RCA/East Windsor |
| Mission | Civil Communications |
| Bus & Motor | RELAY, Unknown motor |
| Mass | 78 kg wet, 78 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Shape & HBR | Oct Cyl, 0.81 m |
| Radar Cross Section | 0.652 m², Medium (>0.1 m² and < 1m²) |
Expand to show TLE details & history
TLE from 1 day ago
0 RELAY 1 (A-15)
1 00503U 62068A 25014.22281168 -.00000017 00000-0 00000-0 0 9991
2 00503 47.5312 9.0627 2845355 309.4175 41.6882 7.78160796765083Epoch: 2025-01-14T05:20Z
Definitive object data (Epoch: 2025-01-14T05:20:50.929Z)
| Latitude | 14.10536° |
| Longitude | -171.84433° |
| Altitude | 2,625.296 km |
| Speed | 7.177 km/s |
| True Right ascension | 01h 29m 12s |
| True Declination | 14° 02' 28" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | 4.41462° |
| Longitude | -10.69571° |
| Altitude | 6,101.788 km |
| Speed | 5.18 km/s |
| Apparent Right ascension | 12h 39m 42s |
| Apparent Declination | -22° 05' 34" |
| Sunlit | Object is in daylight |
Visualization observer readout
| Local Sidereal Time | 11:33:05 |
| Azimuth | 162.803° S |
| Elevation | 26.073° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 7,440.646 km |
| Perigee altitude | 1,318.691 km |
| Semi-major axis | 10,757.806 km |
| Eccentricity | 0.2845355 |
| Inclination | 47.5312° |
| RAAN | 9.0627° |
| Arg. of periapsis | 309.4175° |
| True anomaly | 69.85124° |
| Mean anomaly | 41.6882° |
| Eccentric anomaly | 55.05087° |
| Mean motion | 1.94517 °/min |
| BSTAR | Unknown |
| Orbital period | 185.07 mins |
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Other satellites on launch #68 in the year 1962 (1962-12-13 UTC)
| RELAY 1 (A-15), 503 |
| DELTA 1 R/B, 515 |
RELAY 1 (A-15) 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-01-15 10:52:58.828Z | 162.827° S | 2025-01-15 10:52:58.828Z | 162.827° S | 23.683° | 2025-01-15 11:00:58.828Z | 157.618° S |
| 46 mins | 2025-01-15 13:13:58.828Z | 292.828° NW | 2025-01-15 13:37:58.828Z | 262.548° W | 17.477° | 2025-01-15 13:59:58.828Z | 229.146° WSW |
| 40 mins | 2025-01-16 00:28:58.828Z | 182.644° SSW | 2025-01-16 00:39:58.828Z | 121.029° SE | 35.575° | 2025-01-16 01:08:58.828Z | 56.465° ENE |
| 66 mins | 2025-01-16 03:40:58.828Z | 252.468° W | 2025-01-16 03:59:58.828Z | 340.95° N | 44.572° | 2025-01-16 04:46:58.828Z | 74.385° E |
| 83 mins | 2025-01-16 07:00:58.828Z | 290.95° WNW | 2025-01-16 07:34:58.828Z | 23.283° NE | 44.776° | 2025-01-16 08:23:58.828Z | 118.783° SE |
| 29 mins | 2025-01-16 10:23:58.828Z | 303.004° NW | 2025-01-16 10:52:58.828Z | 271.076° WNW | 36.622° | 2025-01-16 10:52:58.828Z | 271.076° WNW |
Authenticating...
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