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). 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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503 intel report (Beta)
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Edit Public Description
Expand to show TLE details & history
TLE from 21 hours ago
0 RELAY 1 (A-15)
1 00503U 62068A 25183.32322691 -.00000026 00000-0 00000-0 0 9996
2 00503 47.4941 152.6726 2840034 154.4427 355.7984 7.78158195778246
Epoch: 2025-07-02T07:45Z
TLE epoch observation values (Epoch: 2025-07-02T07:45:26.805Z)
Latitude
24.02454°
Longitude
-88.2745°
Altitude
1,340.047 km
Speed
8.142 km/s
True Right ascension
20h 34m 46s
True Declination
23° 54' 24"
Sunlit
Visualization orbit readout
Latitude
26.00651°
Longitude
141.05633°
Altitude
5,095.16 km
Speed
5.697 km/s
Apparent Right ascension
09h 59m 21s
Apparent Declination
5° 36' 31"
Sunlit
Visualization observer readout
Local Sidereal Time
16:23:15
Azimuth
278.132° WNW
Elevation
-0.96°
Doppler factor
1
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Other satellites on launch #68 in the year 1962 (1962-12-13 UTC)
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. |
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28 mins | 2025-07-03 04:46:52.745Z | 282.837° WNW | 2025-07-03 05:05:52.745Z | 1.286° NNE | 41.898° | 2025-07-03 05:14:52.745Z | 86.612° E |
15 mins | 2025-07-03 08:12:52.745Z | 294.637° NW | 2025-07-03 08:20:52.745Z | 235.577° WSW | 36.71° | 2025-07-03 08:27:52.745Z | 154.275° SSE |
58 mins | 2025-07-03 22:29:52.745Z | 196.58° SSW | 2025-07-03 23:08:52.745Z | 131.998° SE | 38.585° | 2025-07-03 23:27:52.745Z | 63.393° ENE |
44 mins | 2025-07-04 01:58:52.745Z | 247.951° W | 2025-07-04 02:29:52.745Z | 328.295° NNW | 44.26° | 2025-07-04 02:42:52.745Z | 65.024° ENE |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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