COSMOS 1561, 15000
Orbit data source: Space-Track
COSMOS 1561, 15000 is a payload satellite owned by GUKOS (CIS) in LEO that was launched on Mon, 28 May 1984 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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
15000 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
CISRelated business
Manufacturer
NPO PM
Mission
Defense Communications
Bus & Motor
STRELA-1 11F625, Unknown motor
Mass
60 kg wet, 60 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Sphere, 0.4 m
Radar Cross Section
0.588 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 COSMOS 1561
1 15000U 84052C 25258.54364736 -.00000011 00000-0 36634-4 0 9994
2 15000 74.0138 34.9280 0015643 303.5417 126.0471 12.47985963881472Epoch: 2025-09-15T13:02Z
TLE epoch observation values (Epoch: 2025-09-15T13:02:51.131Z)
Latitude
64.48845°
Longitude
-118.84953°
Altitude
1,490.922 km
Speed
7.121 km/s
True Right ascension
04h 46m 26s
True Declination
64° 22' 01"
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
15:48:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,483.047 km
Perigee altitude
1,458.491 km
Semi-major axis
7,848.906 km
Eccentricity
0.00156
Inclination
74.0138°
RAAN
34.928°
Arg. of periapsis
303.5417°
True anomaly
126.19187°
Mean anomaly
126.0471°
Eccentric anomaly
126.1195°
Mean motion
3.12126 °/min
Orbital period
115.34 mins
BSTAR
0.000036634
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 #52 in the year 1984 (1984-05-28 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 1561 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. |
|---|---|---|---|---|---|---|---|
| 15 mins | 2025-09-16 09:56:11.237Z | 181.078° SSW | 2025-09-16 10:03:11.237Z | 102.379° ESE | 42.531° | 2025-09-16 10:11:11.237Z | 24.976° NE |
| 12 mins | 2025-09-16 11:56:11.237Z | 256.493° W | 2025-09-16 12:01:11.237Z | 300.148° NW | 25.854° | 2025-09-16 12:08:11.237Z | 358.851° N |
| 8 mins | 2025-09-16 18:08:11.237Z | 19.999° NNE | 2025-09-16 18:11:11.237Z | 42.342° NE | 15.503° | 2025-09-16 18:16:11.237Z | 78.558° E |
| 15 mins | 2025-09-16 20:04:11.237Z | 347.525° N | 2025-09-16 20:11:11.237Z | 69.527° E | 43.109° | 2025-09-16 20:19:11.237Z | 150.934° SSE |
| 11 mins | 2025-09-16 22:03:11.237Z | 308.306° NW | 2025-09-16 22:08:11.237Z | 266.394° W | 22.887° | 2025-09-16 22:14:11.237Z | 219.886° 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 ascending 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 ascending order |
|---|