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
Defense Navigation
Bus & Motor
TRANSIT 4, Unknown motor
Mass
78 kg wet, 78 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl, 0.5 m
Radar Cross Section
1.143 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 TRANSIT 4A
1 00116U 61015A 25241.25243937 .00000014 00000-0 69026-4 0 9992
2 00116 66.8072 245.1323 0069179 120.7943 239.9970 13.92254904256064Epoch: 2025-08-29T06:03Z
TLE epoch observation values (Epoch: 2025-08-29T06:03:30.761Z)
Latitude
-0.00008°
Longitude
176.55034°
Altitude
948.33 km
Speed
7.365 km/s
True Right ascension
16h 20m 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
12:47:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
969.613 km
Perigee altitude
868.649 km
Semi-major axis
7,297.268 km
Eccentricity
0.00692
Inclination
66.8072°
RAAN
245.1323°
Arg. of periapsis
120.7943°
True anomaly
239.31347°
Mean anomaly
239.997°
Eccentric anomaly
239.65494°
Mean motion
3.48179 °/min
Orbital period
103.4 mins
BSTAR
0.000069026
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Other satellites on launch #15 in the year 1961 (1961-06-29 UTC)
TRANSIT 4A Visibility forecast
Observer location: undefined°, undefined°
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 | 2025-08-30 01:08:19.222Z | 171.898° S | 2025-08-30 01:13:19.222Z | 102.479° ESE | 31.094° | 2025-08-30 01:18:19.222Z | 45.303° ENE |
| 9 mins | 2025-08-30 02:55:19.222Z | 250.601° W | 2025-08-30 02:59:19.222Z | 309.126° NW | 30.338° | 2025-08-30 03:04:19.222Z | 12.23° NNE |
| 8 mins | 2025-08-30 10:12:19.222Z | 357.718° N | 2025-08-30 10:15:19.222Z | 43.368° NE | 30.423° | 2025-08-30 10:20:19.222Z | 115.385° SE |
| 8 mins | 2025-08-30 11:58:19.222Z | 304.349° NW | 2025-08-30 12:02:19.222Z | 241.873° WSW | 29.34° | 2025-08-30 12:06:19.222Z | 190.958° SSW |
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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Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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Authenticating...
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