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: 11 hours ago
TLE from 11 hours ago
0 TRANSIT 4B
1 202U 61031A 26044.00620321 .00000070 00000-0 58328-4 0 9992
2 202 32.4367 264.3063 0101006 351.2139 8.6717 13.63780339204038Epoch: 2026-02-13T00:08Z
TLE epoch observation values (Epoch: 2026-02-13T00:08:55.957Z)
Latitude
0.00002°
Longitude
119.02337°
Altitude
946.868 km
Speed
7.417 km/s
True Right ascension
17h 37m 13s
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
14:01:23
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,100.155 km
Perigee altitude
950.595 km
Semi-major axis
7,403.512 km
Eccentricity
0.0101
Inclination
32.4367°
RAAN
264.3063°
Arg. of periapsis
351.2139°
True anomaly
8.84841°
Mean anomaly
8.6717°
Eccentric anomaly
8.75984°
Mean motion
3.40711 °/min
Orbital period
105.66 mins
BSTAR
0.000058328
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-02-13 17:55:48.282Z | 203.189° SW | 2026-02-13 17:59:48.282Z | 160.561° S | 22.288° | 2026-02-13 18:04:48.282Z | 107.944° ESE |
| 11 mins | 2026-02-13 19:46:48.282Z | 234.966° WSW | 2026-02-13 19:51:48.282Z | 168.191° S | 33.77° | 2026-02-13 19:57:48.282Z | 104.344° ESE |
| 11 mins | 2026-02-13 21:38:48.282Z | 249.641° W | 2026-02-13 21:43:48.282Z | 180.414° SSW | 33.74° | 2026-02-13 21:49:48.282Z | 120.407° SE |
| 9 mins | 2026-02-13 23:30:48.282Z | 248.416° W | 2026-02-13 23:34:48.282Z | 207.241° SW | 22.956° | 2026-02-13 23:39:48.282Z | 156° 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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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