COSMOS 1247 DEB, 12984
Orbit data source: Space-Track
COSMOS 1247 DEB, 12984 is space debris in HEO originally from a launch on Thu, 19 Feb 1981 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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12984 intel report (Beta)
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Identifier
Orbit
Country
CISRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 1.7 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 5 days ago
TLE from 5 days ago
0 COSMOS 1247 DEB
1 12984U 81016F 26168.96838182 -.00000645 00000-0 00000+0 0 9993
2 12984 69.5167 6.7156 6116581 338.6609 4.1111 2.02665952329984Epoch: 2026-06-17T23:14Z
TLE epoch observation values (Epoch: 2026-06-17T23:14:28.189Z)
Latitude
-0.00085°
Longitude
111.90147°
Altitude
4,164.118 km
Speed
7.779 km/s
True Right ascension
00h 26m 56s
True Declination
0° 00' 03"
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
23:09:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
36,129.823 km
Perigee altitude
3,864.496 km
Semi-major axis
26,375.296 km
Eccentricity
0.61166
Inclination
69.5167°
RAAN
6.7156°
Arg. of periapsis
338.6609°
True anomaly
21.19321°
Mean anomaly
4.1111°
Eccentric anomaly
10.49403°
Mean motion
0.5067 °/min
Orbital period
710.49 mins
BSTAR
0
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Other satellites on launch #16 in the year 1981 (1981-02-19 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.COSMOS 1247 DEB Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 435 mins | 2026-06-22 22:20:53.200Z | 324.665° NNW | 2026-06-23 00:49:53.200Z | 298.928° NW | 44.194° | 2026-06-23 05:35:53.200Z | 252.71° W |
| 31 mins | 2026-06-23 09:55:53.200Z | 57.427° ENE | 2026-06-23 10:07:53.200Z | 40.024° NE | 12.217° | 2026-06-23 10:26:53.200Z | 23.239° NE |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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