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: 23 hours ago
TLE from 23 hours ago
0 TRANSIT 4A
1 00116U 61015A 25315.24288397 .00000138 00000-0 16370-3 0 9992
2 00116 66.8104 64.1068 0069102 63.7998 297.0165 13.92279152266364Epoch: 2025-11-11T05:49Z
TLE epoch observation values (Epoch: 2025-11-11T05:49:45.175Z)
Latitude
0.00002°
Longitude
-73.96366°
Altitude
900.098 km
Speed
7.414 km/s
True Right ascension
04h 16m 25s
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
00:47:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
969.471 km
Perigee altitude
868.621 km
Semi-major axis
7,297.183 km
Eccentricity
0.00691
Inclination
66.8104°
RAAN
64.1068°
Arg. of periapsis
63.7998°
True anomaly
296.3083°
Mean anomaly
297.0165°
Eccentric anomaly
296.66268°
Mean motion
3.48185 °/min
Orbital period
103.39 mins
BSTAR
0.0001637
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Other satellites on launch #15 in the year 1961 (1961-06-29 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 4A Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-11-12 07:48:34.855Z | 154.799° SSE | 2025-11-12 07:52:34.855Z | 105.093° ESE | 22.662° | 2025-11-12 07:56:34.855Z | 57.546° ENE |
| 9 mins | 2025-11-12 09:34:34.855Z | 237.056° WSW | 2025-11-12 09:38:34.855Z | 310.424° NW | 36.944° | 2025-11-12 09:43:34.855Z | 17.767° NNE |
| 8 mins | 2025-11-12 16:51:34.855Z | 4.452° NNE | 2025-11-12 16:54:34.855Z | 45.426° ENE | 24.591° | 2025-11-12 16:59:34.855Z | 104.774° ESE |
| 9 mins | 2025-11-12 18:37:34.855Z | 314.069° NW | 2025-11-12 18:41:34.855Z | 238.423° WSW | 38.13° | 2025-11-12 18:46:34.855Z | 174.011° 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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