COSMOS 397, 4964
Orbit data source: Space-Track
COSMOS 397, 4964 is a payload satellite owned by PKO (CIS) in LEO that was launched on Thu, 25 Feb 1971 UTC via a TSIKLON-2 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
4964 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
CISRelated business
Manufacturer
TSKBM/KB1
Mission
Spacecraft
Bus & Motor
IS, Unknown motor
Mass
1,400 kg wet, ~1,400 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 5 hours ago
TLE from 5 hours ago
0 COSMOS 397
1 4964U 71015A 26092.80460199 .00000017 00000-0 44539-4 0 9990
2 4964 65.7226 274.7785 1033704 266.2302 82.0134 12.74940598658648Epoch: 2026-04-02T19:18Z
TLE epoch observation values (Epoch: 2026-04-02T19:18:37.611Z)
Latitude
0.00002°
Longitude
153.97397°
Altitude
1,334.905 km
Speed
7.204 km/s
True Right ascension
18h 19m 06s
True Declination
0° 00' 00"
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
06:23:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
2,160.401 km
Perigee altitude
560.517 km
Semi-major axis
7,738.596 km
Eccentricity
0.10337
Inclination
65.7226°
RAAN
274.7785°
Arg. of periapsis
266.2302°
True anomaly
93.87275°
Mean anomaly
82.0134°
Eccentric anomaly
87.93223°
Mean motion
3.18823 °/min
Orbital period
112.92 mins
BSTAR
0.000044539
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #15 in the year 1971 (1971-02-25 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.COSMOS 397 Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 18 mins | 2026-04-03 12:20:27.857Z | 161.628° S | 2026-04-03 12:28:27.857Z | 101.733° ESE | 30.85° | 2026-04-03 12:38:27.857Z | 43.54° NE |
| 21 mins | 2026-04-03 14:15:27.857Z | 223.45° SW | 2026-04-03 14:24:27.857Z | 304.597° NW | 43.197° | 2026-04-03 14:36:27.857Z | 28.273° NE |
| 18 mins | 2026-04-03 16:16:27.857Z | 282.585° WNW | 2026-04-03 16:24:27.857Z | 333.271° NNW | 25.645° | 2026-04-03 16:34:27.857Z | 25.925° NE |
| 15 mins | 2026-04-03 18:19:27.857Z | 323.821° NNW | 2026-04-03 18:26:27.857Z | 0.029° NNE | 18.323° | 2026-04-03 18:34:27.857Z | 41.187° NE |
| 18 mins | 2026-04-03 20:19:27.857Z | 337.426° NNW | 2026-04-03 20:28:27.857Z | 27.245° NE | 26.018° | 2026-04-03 20:37:27.857Z | 84.507° E |
| 20 mins | 2026-04-03 22:17:27.857Z | 332.109° NNW | 2026-04-03 22:28:27.857Z | 64.822° ENE | 43.744° | 2026-04-03 22:37:27.857Z | 140.319° SSE |
| 16 mins | 2026-04-04 00:15:27.857Z | 312.433° NW | 2026-04-04 00:23:27.857Z | 264.67° W | 28.144° | 2026-04-04 00:31:27.857Z | 202.648° SW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|