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TRANSIT 4B, 202

Orbit data source: Space-Track

TRANSIT 4B, 202 is a payload satellite owned by USN BuWeps (US) in LEO that was launched on Wed, 15 Nov 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/202?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/202?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

202, 1961-031A

Orbit

LEO

Last TLE update

5 hours ago

Origin

United States Navy (US)

Manufacturer

APL

Mission

Defense Navigation

Bus & Motor

TRANSIT 4, Unknown motor

Mass

89 kg wet, 89 kg dry

Launch date (UTC)

1961-11-15 (63 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, Large (>1 m²)

Expand to show TLE details & history

TLE from 5 hours ago

0 TRANSIT 4B
1   202U 61031A   25129.47823563  .00000076  00000-0  66808-4 0  9997
2   202  32.4365 224.3607 0101076  28.0492 332.5529 13.63747935165923

Epoch: 2025-05-09T11:28Z

Definitive object data (Epoch: 2025-05-09T11:28:39.558Z)

Latitude

-0.00004°

Longitude

-175.33799°

Altitude

954.641 km

Speed

7.409 km/s

True Right ascension

14h 57m 26s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at TLE epoch

Visualization TLE readout

Latitude

-21.03015°

Longitude

40.70798°

Altitude

1,098.926 km

Speed

7.268 km/s

Apparent Right ascension

07h 58m 13s

Apparent Declination

-41° 44' 57"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

00:14:45

Azimuth

114.211° SE

Elevation

-42.603°

Doppler factor

Orbital elements

Apogee altitude

1,100.325 km

Perigee altitude

950.659 km

Semi-major axis

7,403.629 km

Eccentricity

0.0101076

Inclination

32.4365°

RAAN

224.3607°

Arg. of periapsis

28.0492°

True anomaly

332.01299°

Mean anomaly

332.5529°

Eccentric anomaly

332.28355°

Mean motion

3.40703 °/min

BSTAR

0.000066808

Orbital period

105.66 mins

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Other satellites on launch #31 in the year 1961 (1961-11-15 UTC)

TRAAC, 205

THOR ABLESTAR R/B, 204

TRAAC DEB, 10796

TRANSIT 4B 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.
6 mins	2025-05-10 08:45:20.485Z	178.092° S	2025-05-10 08:48:20.485Z	147.659° SSE	14.697°	2025-05-10 08:51:20.485Z	118.825° SE
9 mins	2025-05-10 10:35:20.485Z	218.381° SW	2025-05-10 10:39:20.485Z	165.208° S	29.194°	2025-05-10 10:44:20.485Z	106.159° ESE
10 mins	2025-05-10 12:26:20.485Z	245.232° WSW	2025-05-10 12:31:20.485Z	173.199° S	34.599°	2025-05-10 12:36:20.485Z	114.465° SE
10 mins	2025-05-10 14:18:20.485Z	250.157° W	2025-05-10 14:22:20.485Z	203.337° SW	28.075°	2025-05-10 14:28:20.485Z	137.179° SSE

Authenticating...

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Check out TRANSIT 4B, 202 on other resources

View TRANSIT 4B, 202 on NASA - NSSDCA Website

View TRANSIT 4B, 202 on Heavens-Above

View TRANSIT 4B, 202 on Keep Track

View TRANSIT 4B, 202 on Celestrak

View TRANSIT 4B, 202 on Gunter's Space Page

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