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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3129 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
OKB-10
Mission
Defense Geodetic
Bus & Motor
KAUR-1 11F621, Unknown motor
Mass
800 kg wet, 800 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 1 Rod, 8.5 m
Radar Cross Section
6.283 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 COSMOS 203
1 03129U 68011A 25245.91432785 -.00000074 00000-0 -13910-3 0 9998
2 03129 74.0530 165.3050 0011622 58.2115 10.6165 13.18293640768120Epoch: 2025-09-02T21:56Z
TLE epoch observation values (Epoch: 2025-09-02T21:56:37.926Z)
Latitude
63.83112°
Longitude
-110.80247°
Altitude
1,193.225 km
Speed
7.267 km/s
True Right ascension
13h 22m 37s
True Declination
63° 42' 09"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
20:01:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,197.794 km
Perigee altitude
1,180.205 km
Semi-major axis
7,567.136 km
Eccentricity
0.00116
Inclination
74.053°
RAAN
165.305°
Arg. of periapsis
58.2115°
True anomaly
10.64107°
Mean anomaly
10.6165°
Eccentric anomaly
10.62878°
Mean motion
3.2972 °/min
Orbital period
109.18 mins
BSTAR
-0.0001391
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2025-09-03 05:27:34.118Z | 352.648° N | 2025-09-03 05:33:34.118Z | 57.626° ENE | 37.603° | 2025-09-03 05:40:34.118Z | 139.175° SSE |
| 10 mins | 2025-09-03 07:20:34.118Z | 310.37° NW | 2025-09-03 07:24:34.118Z | 267.668° W | 26.339° | 2025-09-03 07:30:34.118Z | 208.473° SW |
| 13 mins | 2025-09-03 19:33:34.118Z | 183.793° SSW | 2025-09-03 19:39:34.118Z | 95.715° ESE | 42.884° | 2025-09-03 19:46:34.118Z | 24.053° NE |
| 9 mins | 2025-09-03 21:27:34.118Z | 264.994° W | 2025-09-03 21:31:34.118Z | 306.446° NW | 21.996° | 2025-09-03 21:36:34.118Z | 353.044° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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Authenticating...
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