VANGUARD 3, 20
Orbit data source: Space-Track
VANGUARD 3, 20 is a payload satellite owned by GSFC (US) in LEO that was launched on Fri, 18 Sep 1959 UTC via a VANGUARD 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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20 intel report (Beta)
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Edit Public Description
Expand to show TLE details & history
TLE from 7 hours ago
0 VANGUARD 3
1 00020U 59007A 25183.90375163 .00000861 00000-0 34574-3 0 9997
2 00020 33.3469 83.5720 1642085 342.3257 12.6157 11.60725076443995
Epoch: 2025-07-02T21:41Z
TLE epoch observation values (Epoch: 2025-07-02T21:41:24.14Z)
Latitude
-0.00006°
Longitude
-162.95684°
Altitude
554.258 km
Speed
8.164 km/s
True Right ascension
05h 34m 17s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
17.33382°
Longitude
-12.2007°
Altitude
3,134.645 km
Speed
5.955 km/s
Apparent Right ascension
14h 40m 24s
Apparent Declination
-15° 41' 51"
Sunlit
Visualization observer readout
Local Sidereal Time
16:28:50
Azimuth
210.078° SW
Elevation
28.925°
Doppler factor
1
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Other satellites on launch #7 in the year 1959 (1959-09-18 UTC)
VANGUARD 3 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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13 mins | 2025-07-03 04:43:26.322Z | 210.004° SW | 2025-07-03 04:43:26.322Z | 210.004° SW | 25.739° | 2025-07-03 04:56:26.322Z | 167.211° S |
13 mins | 2025-07-03 20:36:26.322Z | 198.839° SSW | 2025-07-03 20:40:26.322Z | 151.314° SSE | 27.169° | 2025-07-03 20:49:26.322Z | 90.796° ESE |
20 mins | 2025-07-03 22:45:26.322Z | 244.098° WSW | 2025-07-03 22:52:26.322Z | 161.662° S | 40.861° | 2025-07-03 23:05:26.322Z | 96.453° ESE |
26 mins | 2025-07-04 00:56:26.322Z | 262.612° W | 2025-07-04 01:05:26.322Z | 189.687° SSW | 40.861° | 2025-07-04 01:22:26.322Z | 117.733° SE |
28 mins | 2025-07-04 03:08:26.322Z | 265.395° W | 2025-07-04 03:19:26.322Z | 209.278° SW | 32.67° | 2025-07-04 03:36:26.322Z | 147.967° SSE |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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