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COSMOS 256, 3576

Orbit data source: Space-Track

COSMOS 256, 3576 is a payload satellite owned by OKB-10 (CIS) in LEO that was launched on Sat, 30 Nov 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
3576, 1968-106A
Orbit
LEO
Last TLE update
16 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)
1968-11-30 (57 years ago)
Launch vehicle
KOSMOS 11K65M
Launch site
Plesetsk Missile And Space Complex (PKMTR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Sphere + 2 Pan, 17 m
Radar Cross Section
2.011 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 16 hours ago
0 COSMOS 256
1  3576U 68106A   25188.90533419 -.00000095  00000-0 -19584-3 0  9996
2  3576  74.0477 247.2497 0034233 318.4154 214.9583 13.16869770720771
Epoch: 2025-07-07T21:43Z
TLE epoch observation values (Epoch: 2025-07-07T21:43:40.874Z)
Latitude
6.51875°
Longitude
173.35911°
Altitude
1,219.842 km
Speed
7.235 km/s
True Right ascension
04h 21m 32s
True Declination
6° 28' 57"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
55.27157°
Longitude
18.4564°
Altitude
1,210.493 km
Speed
7.252 km/s
Apparent Right ascension
15h 41m 47s
Apparent Declination
15° 25' 21"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
01:39:45
Azimuth
326.413° NNW
Elevation
-27.799°
Doppler factor
1
Orbital elements
Apogee altitude
1,220.38 km
Perigee altitude
1,168.533 km
Semi-major axis
7,572.594 km
Eccentricity
0.00342
Inclination
74.0477°
RAAN
247.2497°
Arg. of periapsis
318.4154°
True anomaly
Unknown
Mean anomaly
214.9583°
Eccentric anomaly
Unknown
Mean motion
3.29364 °/min
Orbital period
109.3 mins
BSTAR
-0.00019584
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Other satellites on launch #106 in the year 1968 (1968-11-30 UTC)

COSMOS 256 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.
12 mins2025-07-08 13:49:11.993Z1.979° NNE2025-07-08 13:55:11.993Z56.243° ENE24.09°2025-07-08 14:01:11.993Z110.925° ESE
13 mins2025-07-08 15:41:11.993Z332.623° NNW2025-07-08 15:47:11.993Z259.08° W41.801°2025-07-08 15:54:11.993Z178.065° S
11 mins2025-07-09 03:57:11.993Z152.292° SSE2025-07-09 04:02:11.993Z100.389° ESE28.538°2025-07-09 04:08:11.993Z39.759° NE
12 mins2025-07-09 05:48:11.993Z229.127° WSW2025-07-09 05:53:11.993Z286.124° WNW35.649°2025-07-09 06:00:11.993Z6.762° NNE
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