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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Identifier
Orbit
Country
USRelated business
Manufacturer
APL
Mission
Spacecraft
Bus & Motor
TRANSIT 4, Unknown motor
Mass
89 kg wet, 89 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 TRANSIT 4B
1 202U 61031A 26162.31676826 .00000064 00000-0 49503-4 0 9996
2 202 32.4388 31.6996 0101045 170.5257 189.7295 13.63792942220197Epoch: 2026-06-11T07:36Z
TLE epoch observation values (Epoch: 2026-06-11T07:36:08.777Z)
Latitude
-0.00002°
Longitude
18.00069°
Altitude
1,094.383 km
Speed
7.271 km/s
True Right ascension
02h 06m 47s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
14:10:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,100.137 km
Perigee altitude
950.52 km
Semi-major axis
7,403.466 km
Eccentricity
0.0101
Inclination
32.4388°
RAAN
31.6996°
Arg. of periapsis
170.5257°
True anomaly
189.53623°
Mean anomaly
189.7295°
Eccentric anomaly
189.63263°
Mean motion
3.40714 °/min
Orbital period
105.66 mins
BSTAR
0.000049503
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Other satellites on launch #31 in the year 1961 (1961-11-15 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-06-13 17:46:27.088Z | 206.629° SW | 2026-06-13 17:51:27.088Z | 161.386° S | 22.345° | 2026-06-13 17:56:27.088Z | 109.94° ESE |
| 11 mins | 2026-06-13 19:38:27.088Z | 233.482° WSW | 2026-06-13 19:43:27.088Z | 172.573° S | 33.713° | 2026-06-13 19:49:27.088Z | 104.474° ESE |
| 11 mins | 2026-06-13 21:30:27.088Z | 250.221° W | 2026-06-13 21:35:27.088Z | 185.011° SSW | 34.204° | 2026-06-13 21:41:27.088Z | 118.903° SE |
| 8 mins | 2026-06-13 23:23:27.088Z | 243.407° WSW | 2026-06-13 23:26:27.088Z | 209.572° SW | 23.097° | 2026-06-13 23:31:27.088Z | 153.891° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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