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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Edit Public Description
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: 1 day ago
TLE from 1 day ago
0 TRANSIT 4B
1 00202U 61031A 25307.60661098 .00000096 00000-0 88527-4 0 9997
2 00202 32.4387 52.1849 0101423 301.2724 57.7997 13.63768314190187Epoch: 2025-11-03T14:33Z
TLE epoch observation values (Epoch: 2025-11-03T14:33:31.188Z)
Latitude
-0.00001°
Longitude
150.69936°
Altitude
981.332 km
Speed
7.383 km/s
True Right ascension
03h 28m 44s
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
17:38:51
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,100.507 km
Perigee altitude
950.329 km
Semi-major axis
7,403.555 km
Eccentricity
0.01014
Inclination
32.4387°
RAAN
52.1849°
Arg. of periapsis
301.2724°
True anomaly
58.7898°
Mean anomaly
57.7997°
Eccentric anomaly
58.29408°
Mean motion
3.40708 °/min
Orbital period
105.66 mins
BSTAR
0.000088527
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-11-05 08:54:47.285Z | 171.533° S | 2025-11-05 08:57:47.285Z | 143.581° SSE | 13.41° | 2025-11-05 08:59:47.285Z | 125.512° SE |
| 10 mins | 2025-11-05 10:43:47.285Z | 217.928° SW | 2025-11-05 10:48:47.285Z | 159.577° S | 28.709° | 2025-11-05 10:53:47.285Z | 105.641° ESE |
| 11 mins | 2025-11-05 12:35:47.285Z | 241.623° WSW | 2025-11-05 12:40:47.285Z | 169.276° S | 35.665° | 2025-11-05 12:46:47.285Z | 108.774° ESE |
| 10 mins | 2025-11-05 14:27:47.285Z | 250.137° W | 2025-11-05 14:32:47.285Z | 185.332° SSW | 31.129° | 2025-11-05 14:37:47.285Z | 133.787° SE |
| 7 mins | 2025-11-05 16:20:47.285Z | 238.012° WSW | 2025-11-05 16:23:47.285Z | 209.262° SW | 17.591° | 2025-11-05 16:27:47.285Z | 172.684° S |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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