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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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
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 4 hours ago
TLE from 4 hours ago
0 TRANSIT 4A
1 116U 61015A 26189.51861610 -.00000007 00000-0 53392-4 0 9999
2 116 66.8073 198.6309 0082264 259.0250 100.1567 13.92335202299674Epoch: 2026-07-08T12:26Z
TLE epoch observation values (Epoch: 2026-07-08T12:26:48.431Z)
Latitude
-0.00002°
Longitude
85.45536°
Altitude
933.603 km
Speed
7.38 km/s
True Right ascension
13h 14m 31s
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
04:44:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
978.878 km
Perigee altitude
858.822 km
Semi-major axis
7,296.987 km
Eccentricity
0.00823
Inclination
66.8073°
RAAN
198.6309°
Arg. of periapsis
259.025°
True anomaly
101.08288°
Mean anomaly
100.1567°
Eccentric anomaly
100.61996°
Mean motion
3.48199 °/min
Orbital period
103.39 mins
BSTAR
0.000053392
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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
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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 | 2026-07-09 00:39:13.642Z | 126.501° SE | 2026-07-09 00:42:13.642Z | 96.187° ESE | 13.768° | 2026-07-09 00:44:13.642Z | 76.647° E |
| 11 mins | 2026-07-09 02:22:13.642Z | 208.926° SW | 2026-07-09 02:27:13.642Z | 326.896° NNW | 44.955° | 2026-07-09 02:33:13.642Z | 28.492° NE |
| 7 mins | 2026-07-09 04:11:13.642Z | 284.228° WNW | 2026-07-09 04:14:13.642Z | 316.293° NNW | 17.761° | 2026-07-09 04:18:13.642Z | 357.974° N |
| 6 mins | 2026-07-09 09:41:13.642Z | 13.462° NNE | 2026-07-09 09:43:13.642Z | 35.642° NE | 17.655° | 2026-07-09 09:47:13.642Z | 79.024° E |
| 10 mins | 2026-07-09 11:26:13.642Z | 331.611° NNW | 2026-07-09 11:31:13.642Z | 140.819° SSE | 44.746° | 2026-07-09 11:36:13.642Z | 151.945° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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