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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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<iframe src="https://www.satcat.com/sats-embedded/116?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/116?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

116, 1961-015A

Orbit

LEO

Last TLE update

15 hours ago

Origin

United States Navy (US)

Manufacturer

APL

Mission

Defense Navigation

Bus & Motor

TRANSIT 4, Unknown motor

Mass

78 kg wet, 78 kg dry

Launch date (UTC)

1961-06-29 (64 years ago)

Launch vehicle

THOR ABLESTAR

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 1.09 m

Radar Cross Section

1.143 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 15 hours ago

0 TRANSIT 4A
1 00116U 61015A   25128.61262088  .00000042  00000-0  90551-4 0  9992
2 00116  66.8076 160.7122 0077510 201.8921 157.8842 13.92233997240385

Epoch: 2025-05-08T14:42Z

Definitive object data (Epoch: 2025-05-08T14:42:10.444Z)

Latitude

0.00003°

Longitude

73.48808°

Altitude

975.369 km

Speed

7.338 km/s

True Right ascension

10h 42m 50s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-29.46631°

Longitude

57.98826°

Altitude

964.311 km

Speed

7.352 km/s

Apparent Right ascension

06h 41m 16s

Apparent Declination

-49° 59' 38"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

14:12:35

Azimuth

234.193° WSW

Elevation

-43.062°

Doppler factor

Orbital elements

Apogee altitude

975.765 km

Perigee altitude

862.642 km

Semi-major axis

7,297.341 km

Eccentricity

0.007751

Inclination

66.8076°

RAAN

160.7122°

Arg. of periapsis

201.8921°

True anomaly

158.21561°

Mean anomaly

157.8842°

Eccentric anomaly

158.0502°

Mean motion

3.48174 °/min

BSTAR

0.000090551

Orbital period

103.4 mins

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Other satellites on launch #15 in the year 1961 (1961-06-29 UTC)

THOR ABLESTAR DEB, 140 (Decayed)

THOR ABLESTAR DEB, 141

THOR ABLESTAR DEB, 142 (Decayed)

THOR ABLESTAR DEB, 143 (Decayed)

THOR ABLESTAR DEB, 144

THOR ABLESTAR DEB, 145

THOR ABLESTAR DEB, 146 (Decayed)

THOR ABLESTAR DEB, 147

THOR ABLESTAR DEB, 148

THOR ABLESTAR DEB, 149 (Decayed)

THOR ABLESTAR DEB, 150

THOR ABLESTAR DEB, 151 (Decayed)

THOR ABLESTAR DEB, 152

THOR ABLESTAR DEB, 153 (Decayed)

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	2025-05-09 11:55:48.974Z	347.544° N	2025-05-09 12:00:48.974Z	47.23° ENE	29.543°	2025-05-09 12:05:48.974Z	113.386° SE
8 mins	2025-05-09 13:43:48.974Z	305.389° NW	2025-05-09 13:47:48.974Z	238.187° WSW	31.502°	2025-05-09 13:51:48.974Z	187.364° SSW
10 mins	2025-05-10 03:01:48.974Z	183.449° SSW	2025-05-10 03:06:48.974Z	106.036° ESE	38.438°	2025-05-10 03:11:48.974Z	40.82° NE
9 mins	2025-05-10 04:48:48.974Z	257.657° W	2025-05-10 04:52:48.974Z	304.093° NW	26.109°	2025-05-10 04:57:48.974Z	6° NNE

Authenticating...

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Check out TRANSIT 4A, 116 on other resources

View TRANSIT 4A, 116 on NASA - NSSDCA Website

View TRANSIT 4A, 116 on Heavens-Above

View TRANSIT 4A, 116 on Keep Track

View TRANSIT 4A, 116 on Celestrak

View TRANSIT 4A, 116 on Gunter's Space Page

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