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COSMOS 203, 3129

Orbit data source: Space-Track

COSMOS 203, 3129 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Tue, 20 Feb 1968 UTC via a KOSMOS 11K65M launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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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Identifier
3129, 1968-011A
Orbit
LEO
Last TLE update
5 hours ago
Origin
Manufacturer
OKB-10
Mission
Defense Geodetic
Bus & Motor
KAUR-1 11F621, Unknown motor
Mass
800 kg wet, 800 kg dry
Launch date (UTC)
1968-02-20 (57 years ago)
Launch vehicle
KOSMOS 11K65M
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cyl + 1 Rod, 17 m
Radar Cross Section
6.283 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 5 hours ago
0 COSMOS 203
1 03129U 68011A   25187.64475681  .00000108  00000-0  32385-3 0  9998
2 03129  74.0510 252.8443 0011972 162.6184 306.6883 13.18291794760440
Epoch: 2025-07-06T15:28Z
TLE epoch observation values (Epoch: 2025-07-06T15:28:26.988Z)
Latitude
65.32936°
Longitude
-122.37847°
Altitude
1,196.762 km
Speed
7.264 km/s
True Right ascension
02h 18m 23s
True Declination
65° 12' 22"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
32.29491°
Longitude
105.90149°
Altitude
1,200.632 km
Speed
7.254 km/s
Apparent Right ascension
18h 49m 31s
Apparent Declination
0° 13' 34"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
08:33:10
Azimuth
37.274° NE
Elevation
-43.822°
Doppler factor
1
Orbital elements
Apogee altitude
1,198.066 km
Perigee altitude
1,179.947 km
Semi-major axis
7,567.144 km
Eccentricity
0.0012
Inclination
74.051°
RAAN
252.8443°
Arg. of periapsis
162.6184°
True anomaly
Unknown
Mean anomaly
306.6883°
Eccentric anomaly
Unknown
Mean motion
3.2972 °/min
Orbital period
109.18 mins
BSTAR
0.00032385
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Other satellites on launch #11 in the year 1968 (1968-02-20 UTC)

COSMOS 203 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 mins2025-07-07 03:48:20.687Z120.091° SE2025-07-07 03:52:20.687Z86.245° E14.302°2025-07-07 03:55:20.687Z61.322° ENE
13 mins2025-07-07 05:36:20.687Z197.292° SSW2025-07-07 05:42:20.687Z7.453° NNE44.957°2025-07-07 05:49:20.687Z18.989° NNE
8 mins2025-07-07 07:31:20.687Z278.081° WNW2025-07-07 07:34:20.687Z305.677° NW17.307°2025-07-07 07:39:20.687Z349.279° N
12 mins2025-07-07 15:11:20.687Z351.43° N2025-07-07 15:17:20.687Z74.37° E40.441°2025-07-07 15:23:20.687Z143.831° SSE
10 mins2025-07-07 17:03:20.687Z310.323° NW2025-07-07 17:08:20.687Z260.181° W22.874°2025-07-07 17:13:20.687Z215.089° SW
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