COSMOS 249 DEB, 18551

Orbit data source: Space-Track

COSMOS 249 DEB, 18551 is space debris in LEO originally from a launch on Sun, 20 Oct 1968 UTC launched from the Tyuratam Missile And Space Complex (TTMTR). 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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https://www.satcat.com/sats-embedded/18551?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18551, 1968-091DF

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1968-10-20 (58 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 COSMOS 249 DEB
1 18551U 68091DF  26219.53379826  .00001484  00000-0  69119-3 0  9993
2 18551  62.2988   1.8288 0693392 202.4586 282.9056 13.40021283653418

Epoch: 2026-08-07T12:48Z

TLE epoch observation values (Epoch: 2026-08-07T12:48:40.169Z)

Latitude

51.88169°

Longitude

-8.13325°

Altitude

1,035.34 km

Speed

7.379 km/s

True Right ascension

09h 20m 22s

True Declination

51° 43' 15"

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

01:06:11

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,627.257 km

Perigee altitude

589.069 km

Semi-major axis

7,486.3 km

Eccentricity

0.06934

Inclination

62.2988°

RAAN

1.8288°

Arg. of periapsis

202.4586°

True anomaly

275.03277°

Mean anomaly

282.9056°

Eccentric anomaly

278.98147°

Mean motion

3.35075 °/min

Orbital period

107.44 mins

BSTAR

0.00069119

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Other satellites on launch #91 in the year 1968 (1968-10-20 UTC)

COSMOS 249 DEB, 6138 (Decayed)

COSMOS 249 DEB, 14411 (Decayed)

COSMOS 249 DEB *, 3908

COSMOS 249 DEB, 3793

COSMOS 249 DEB, 3923

COSMOS 249 DEB, 15535

COSMOS 249 DEB, 18602

COSMOS 249 DEB, 19362

COSMOS 249 DEB *, 3790

COSMOS 249 DEB, 3682 (Decayed)

COSMOS 249 DEB, 3509 (Decayed)

COSMOS 249 DEB, 3582 (Decayed)

COSMOS 249 DEB, 3912

COSMOS 249 DEB *, 3679

COSMOS 249 DEB, 3606

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COSMOS 249 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.
18 mins	2026-08-08 11:33:47.236Z	217.332° SW	2026-08-08 11:43:47.236Z	342.595° N	44.62°	2026-08-08 11:51:47.236Z	34.192° NE
13 mins	2026-08-08 13:29:47.236Z	276.022° WNW	2026-08-08 13:35:47.236Z	322.787° NNW	25.949°	2026-08-08 13:42:47.236Z	21.077° NNE
6 mins	2026-08-08 15:27:47.236Z	330.851° NNW	2026-08-08 15:30:47.236Z	353.379° N	13.776°	2026-08-08 15:33:47.236Z	16.958° NNE
7 mins	2026-08-08 17:21:47.236Z	348.396° N	2026-08-08 17:24:47.236Z	13.789° NNE	15.967°	2026-08-08 17:28:47.236Z	52.682° ENE
10 mins	2026-08-08 19:12:47.236Z	334.113° NNW	2026-08-08 19:18:47.236Z	53.629° ENE	36.782°	2026-08-08 19:22:47.236Z	115.864° SE
7 mins	2026-08-08 21:05:47.236Z	293.493° NW	2026-08-08 21:08:47.236Z	255.555° W	23.982°	2026-08-08 21:12:47.236Z	198.475° SSW
9 mins	2026-08-09 09:04:47.236Z	132.994° SE	2026-08-09 09:08:47.236Z	105.731° ESE	17.556°	2026-08-09 09:13:47.236Z	71.896° E
8 mins	2026-08-09 10:50:47.236Z	202.651° SW	2026-08-09 10:58:47.236Z	143.269° SSE	43.763°	2026-08-09 10:58:47.236Z	143.269° SSE

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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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Check out COSMOS 249 DEB, 18551 on other resources

View COSMOS 249 DEB, 18551 on Heavens-Above

View COSMOS 249 DEB, 18551 on Keep Track

View COSMOS 249 DEB, 18551 on Celestrak

View COSMOS 249 DEB, 18551 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 249 DEB, 18551

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-08-07T12:48:40.169Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #91 in the year 1968 (1968-10-20 UTC)

COSMOS 249 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 249 DEB, 18551 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago