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 | 18 hours 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 18 hours ago
0 RELAY 1 (A-15)
1 00503U 62068A 25024.24268003 -.00000018 00000-0 00000-0 0 9998
2 00503 47.5298 356.2458 2845540 321.5710 31.1251 7.78160963765867Epoch: 2025-01-24T05:49Z
Definitive object data (Epoch: 2025-01-24T05:49:27.554Z)
| Latitude | 11.78608° |
| Longitude | 156.03111° |
| Altitude | 2,105.51 km |
| Speed | 7.546 km/s |
| True Right ascension | 00h 28m 49s |
| True Declination | 11° 43' 42" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | -18.55935° |
| Longitude | -18.02531° |
| Altitude | 4,980.906 km |
| Speed | 5.758 km/s |
| Apparent Right ascension | 12h 47m 53s |
| Apparent Declination | -26° 06' 08" |
| Sunlit | Object is in daylight |
Visualization observer readout
| Local Sidereal Time | 00:37:34 |
| Azimuth | 350.364° N |
| Elevation | -76.019° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 7,440.844 km |
| Perigee altitude | 1,318.491 km |
| Semi-major axis | 10,757.804 km |
| Eccentricity | 0.284554 |
| Inclination | 47.5298° |
| RAAN | 356.2458° |
| Arg. of periapsis | 321.571° |
| True anomaly | 54.49182° |
| Mean anomaly | 31.1251° |
| Eccentric anomaly | 42.04366° |
| 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. |
|---|---|---|---|---|---|---|---|
| 44 mins | 2025-01-25 00:19:56.153Z | 214.033° SW | 2025-01-25 00:32:56.153Z | 125.879° SE | 42.965° | 2025-01-25 01:03:56.153Z | 58.882° ENE |
| 69 mins | 2025-01-25 03:35:56.153Z | 271.578° WNW | 2025-01-25 03:55:56.153Z | 355.811° N | 43.833° | 2025-01-25 04:44:56.153Z | 88.579° E |
| 82 mins | 2025-01-25 06:55:56.153Z | 298.076° NW | 2025-01-25 07:29:56.153Z | 220.763° SW | 44.872° | 2025-01-25 08:17:56.153Z | 137.177° SSE |
| 70 mins | 2025-01-25 10:19:56.153Z | 299.987° NW | 2025-01-25 10:54:56.153Z | 249.279° W | 30.638° | 2025-01-25 11:29:56.153Z | 194.278° SSW |
| 20 mins | 2025-01-25 21:55:56.153Z | 141.114° SSE | 2025-01-25 22:02:56.153Z | 104.091° ESE | 19.633° | 2025-01-25 22:15:56.153Z | 65.513° ENE |
Authenticating...
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