TRANSIT 4A, 116
Orbit data source: Space-Track
TRANSIT 4A, 116 is a payload satellite owned by USN BuWeps (US) in LEO that was launched on Thu, 29 Jun 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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116 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
78 kg wet, 78 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 TRANSIT 4A
1 116U 61015A 25326.59274176 .00000048 00000-0 95640-4 0 9990
2 116 66.8112 36.3392 0069546 55.1133 305.6457 13.92283280267944Epoch: 2025-11-22T14:13Z
TLE epoch observation values (Epoch: 2025-11-22T14:13:32.888Z)
Latitude
-0.00002°
Longitude
121.13296°
Altitude
893.368 km
Speed
7.421 km/s
True Right ascension
02h 25m 21s
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
11:56:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
969.78 km
Perigee altitude
868.282 km
Semi-major axis
7,297.168 km
Eccentricity
0.00695
Inclination
66.8112°
RAAN
36.3392°
Arg. of periapsis
55.1133°
True anomaly
304.9948°
Mean anomaly
305.6457°
Eccentric anomaly
305.32058°
Mean motion
3.48186 °/min
Orbital period
103.39 mins
BSTAR
0.00009564
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Other satellites on launch #15 in the year 1961 (1961-06-29 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.TRANSIT 4A 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2025-11-23 14:53:41.122Z | 342.906° N | 2025-11-23 14:58:41.122Z | 42.923° NE | 35.346° | 2025-11-23 15:04:41.122Z | 127.168° SE |
| 8 mins | 2025-11-23 16:41:41.122Z | 298.514° NW | 2025-11-23 16:44:41.122Z | 259.984° W | 25.212° | 2025-11-23 16:49:41.122Z | 198.115° SSW |
| 9 mins | 2025-11-24 06:00:41.122Z | 195.682° SSW | 2025-11-24 06:04:41.122Z | 131.17° SE | 43.146° | 2025-11-24 06:09:41.122Z | 34.742° NE |
| 7 mins | 2025-11-24 07:48:41.122Z | 277.288° WNW | 2025-11-24 07:51:41.122Z | 314.41° NW | 19.486° | 2025-11-24 07:55:41.122Z | 0.591° NNE |
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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