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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

12 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 12 hours ago

0 TRANSIT 4A
1 00116U 61015A   25189.81764150  .00000001  00000-0  59692-4 0  9994
2 00116  66.8104  10.9698 0072590 158.8985 201.5117 13.92245976248903

Epoch: 2025-07-08T19:37Z

TLE epoch observation values (Epoch: 2025-07-08T19:37:24.225Z)

Latitude

0.00001°

Longitude

149.61169°

Altitude

972.198 km

Speed

7.341 km/s

True Right ascension

00h 43m 52s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-48.56177°

Longitude

119.54442°

Altitude

983.099 km

Speed

7.337 km/s

Apparent Right ascension

03h 10m 23s

Apparent Declination

-67° 46' 37"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

19:35:08

Azimuth

150.518° SSE

Elevation

-45.327°

Doppler factor

Orbital elements

Apogee altitude

972.133 km

Perigee altitude

866.19 km

Semi-major axis

7,297.299 km

Eccentricity

0.00726

Inclination

66.8104°

RAAN

10.9698°

Arg. of periapsis

158.8985°

True anomaly

Unknown

Mean anomaly

201.5117°

Eccentric anomaly

Unknown

Mean motion

3.48177 °/min

Orbital period

103.4 mins

BSTAR

0.000059692

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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	2025-07-09 12:58:38.503Z	175.305° S	2025-07-09 13:03:38.503Z	109.7° ESE	33.177°	2025-07-09 13:08:38.503Z	45.706° ENE
9 mins	2025-07-09 14:45:38.503Z	250.416° W	2025-07-09 14:49:38.503Z	301.889° NW	29.662°	2025-07-09 14:54:38.503Z	9.188° NNE
9 mins	2025-07-09 22:02:38.503Z	352.75° N	2025-07-09 22:06:38.503Z	55.171° ENE	31.953°	2025-07-09 22:11:38.503Z	119.986° SE
8 mins	2025-07-09 23:49:38.503Z	298.517° NW	2025-07-09 23:52:38.503Z	252.43° W	28.039°	2025-07-09 23:57:38.503Z	190.221° SSW

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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