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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 embed code

<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

8 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 (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, Large (>1 m²)

Expand to show TLE details & history

TLE from 8 hours ago

0 TRANSIT 4B
1 00202U 61031A   25195.51710993  .00000042  00000-0  21938-4 0  9995
2 00202  32.4366 253.6047 0100859 169.9100 190.3571 13.63752336174878

Epoch: 2025-07-14T12:24Z

TLE epoch observation values (Epoch: 2025-07-14T12:24:38.297Z)

Latitude

-0.00006°

Longitude

134.82019°

Altitude

1,094.255 km

Speed

7.271 km/s

True Right ascension

16h 54m 25s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

17.44897°

Longitude

-76.26799°

Altitude

953.15 km

Speed

7.412 km/s

Apparent Right ascension

00h 26m 57s

Apparent Declination

-12° 41' 16"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

08:40:31

Azimuth

282.197° WNW

Elevation

-33.555°

Doppler factor

Orbital elements

Apogee altitude

1,100.148 km

Perigee altitude

950.804 km

Semi-major axis

7,403.613 km

Eccentricity

0.01009

Inclination

32.4366°

RAAN

253.6047°

Arg. of periapsis

169.91°

True anomaly

Unknown

Mean anomaly

190.3571°

Eccentric anomaly

Unknown

Mean motion

3.40704 °/min

Orbital period

105.66 mins

BSTAR

0.000021938

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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.
7 mins	2025-07-15 06:09:13.212Z	180.923° SSW	2025-07-15 06:13:13.212Z	145.426° SSE	14.648°	2025-07-15 06:16:13.212Z	119.09° SE
10 mins	2025-07-15 07:59:13.212Z	219.812° SW	2025-07-15 08:04:13.212Z	163.506° S	29.051°	2025-07-15 08:09:13.212Z	106.564° ESE
11 mins	2025-07-15 09:51:13.212Z	243.173° WSW	2025-07-15 09:56:13.212Z	173.602° S	35.168°	2025-07-15 10:02:13.212Z	109.296° ESE
10 mins	2025-07-15 11:43:13.212Z	250.959° W	2025-07-15 11:47:13.212Z	204.645° SW	29.333°	2025-07-15 11:53:13.212Z	133.871° SE
5 mins	2025-07-15 13:37:13.212Z	228.395° WSW	2025-07-15 13:39:13.212Z	207.769° SW	14.917°	2025-07-15 13:42:13.212Z	178.662° S

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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