TRANSIT 4B, 202
Orbit data source: Space-Track
TRANSIT 4B, 202 is a payload satellite owned by USN BuWeps (US) in LEO that was launched on Wed, 15 Nov 1961 UTC via a THOR ABLESTAR 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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202 intel report (Beta)
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Expand to show TLE details & historyLast TLE update: 23 hours ago
TLE from 23 hours ago
0 TRANSIT 4B
1 00202U 61031A 25261.18949231 .00000065 00000-0 51459-4 0 9997
2 00202 32.4377 284.6785 0101162 308.6859 50.4750 13.63759512183849
TLE epoch observation values (Epoch: 2025-09-18T04:32:52.135Z)
Visualization orbit readout
Visualization observer readout
Orbital elements
Other satellites on launch #31 in the year 1961 (1961-11-15 UTC)
TRANSIT 4B 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. |
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10 mins | 2025-09-19 05:22:52.095Z | 213.419° SW | 2025-09-19 05:27:52.095Z | 155.344° SSE | 27.069° | 2025-09-19 05:32:52.095Z | 104.708° ESE |
12 mins | 2025-09-19 07:13:52.095Z | 242.939° WSW | 2025-09-19 07:18:52.095Z | 186.344° SSW | 35.358° | 2025-09-19 07:25:52.095Z | 106.484° ESE |
11 mins | 2025-09-19 09:05:52.095Z | 254.061° W | 2025-09-19 09:10:52.095Z | 198.591° SSW | 32.365° | 2025-09-19 09:16:52.095Z | 129.719° SE |
8 mins | 2025-09-19 10:58:52.095Z | 244.779° WSW | 2025-09-19 11:02:52.095Z | 206.137° SW | 19.437° | 2025-09-19 11:06:52.095Z | 168.328° S |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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