DECAYED

COSMOS 1261 DEB, 27902 (Decayed)

Orbit data source: Space-Track

COSMOS 1261 DEB, 27902 was space debris in HEO originally from a launch on Tue, 31 Mar 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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Iframe URL

https://www.satcat.com/sats-embedded/27902?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

27902, 1981-031K

Orbit

Decayed

Country

CIS

Related business

Russian Aerospace Forces (RU)

Manufacturer

Unknown

Mission

Decayed spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1981-03-31 (44 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 4 months ago

TLE from 4 months ago

0 COSMOS 1261 DEB
1 27902U 81031K   25144.92734344  .00552617 -21592-6  10594-2 0  9998
2 27902  62.1482  75.4690 7333286  49.8264 353.9700  2.27976171167341

Epoch: 2025-05-24T22:15Z

TLE epoch observation values (Epoch: 2025-05-24T22:15:22.473Z)

Latitude

0.0002°

Longitude

-141.11707°

Altitude

1,266.987 km

Speed

9.378 km/s

True Right ascension

05h 01m 57s

True Declination

0° 00' 01"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

10:42:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,889.28 km

Perigee altitude

124.676 km

Semi-major axis

24,385.115 km

Eccentricity

0.73333

Inclination

62.1482°

RAAN

75.469°

Arg. of periapsis

49.8264°

True anomaly

308.82165°

Mean anomaly

353.97°

Eccentric anomaly

338.72338°

Mean motion

0.56998 °/min

Orbital period

631.61 mins

BSTAR

0.0010594

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Other satellites on launch #31 in the year 1981 (1981-03-31 UTC)

COSMOS 1261, 12376

SL-6 R/B(1), 12377 (Decayed)

SL-6 PLAT, 12378 (Decayed)

SL-6 R/B(2), 12384

COSMOS 1261 DEB, 12892

COSMOS 1261 DEB, 12893

COSMOS 1261 DEB, 12894

COSMOS 1261 DEB, 27796

COSMOS 1261 DEB, 27901

COSMOS 1261 DEB, 29202 (Decayed)

COSMOS 1261 DEB, 33520

COSMOS 1261 DEB, 35507

COSMOS 1261 DEB, 48264 (Decayed)

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COSMOS 1261 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.
86 mins	2025-09-18 19:48:08.352Z	330.209° NNW	2025-09-18 19:56:08.352Z	61.981° ENE	44.182°	2025-09-18 21:14:08.352Z	154.776° SSE

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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out COSMOS 1261 DEB, 27902 (Decayed) on other resources

View COSMOS 1261 DEB, 27902 (Decayed) on Celestrak

View COSMOS 1261 DEB, 27902 (Decayed) on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

COSMOS 1261 DEB, 27902 (Decayed)

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 4 months ago

TLE from 4 months ago

TLE epoch observation values (Epoch: 2025-05-24T22:15:22.473Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #31 in the year 1981 (1981-03-31 UTC)

COSMOS 1261 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 1261 DEB, 27902 (Decayed) on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 4 months ago