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: 21 hours ago
TLE from 21 hours ago
0 TRANSIT 4A
1 116U 61015A 25312.72866889 .00000104 00000-0 13804-3 0 9992
2 116 66.8099 70.2580 0069026 65.7323 295.0947 13.92278131266017Epoch: 2025-11-08T17:29Z
TLE epoch observation values (Epoch: 2025-11-08T17:29:16.992Z)
Latitude
-0°
Longitude
119.78309°
Altitude
901.653 km
Speed
7.412 km/s
True Right ascension
04h 41m 01s
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
10:25:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
969.419 km
Perigee altitude
868.68 km
Semi-major axis
7,297.186 km
Eccentricity
0.0069
Inclination
66.8099°
RAAN
70.258°
Arg. of periapsis
65.7323°
True anomaly
294.37577°
Mean anomaly
295.0947°
Eccentric anomaly
294.7355°
Mean motion
3.48185 °/min
Orbital period
103.39 mins
BSTAR
0.00013804
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-11-09 18:10:32.789Z | 345.245° N | 2025-11-09 18:14:32.789Z | 40.553° NE | 36.979° | 2025-11-09 18:20:32.789Z | 130.295° SE |
| 8 mins | 2025-11-09 19:57:32.789Z | 296.733° NW | 2025-11-09 20:00:32.789Z | 259.59° W | 23.102° | 2025-11-09 20:05:32.789Z | 200.85° SSW |
| 9 mins | 2025-11-10 09:16:32.789Z | 200.168° SSW | 2025-11-10 09:20:32.789Z | 144.483° SSE | 44.139° | 2025-11-10 09:25:32.789Z | 32.584° NE |
| 6 mins | 2025-11-10 11:05:32.789Z | 288.615° WNW | 2025-11-10 11:07:32.789Z | 313.751° NW | 18.173° | 2025-11-10 11:11:32.789Z | 359.233° N |
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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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 ascending order |
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