SL-16 DEB, 18416

Orbit data source: Space-Track

SL-16 DEB, 18416 is space debris in LEO originally from a launch on Wed, 18 Mar 1987 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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<iframe src="https://www.satcat.com/sats-embedded/18416?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/18416?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18416, 1987-027C

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

SEP MOTOR COVER, Unknown motor

Mass

~0 kg wet, ~1 kg dry

Launch date (UTC)

1987-03-18 (39 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.2 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 23 hours ago

TLE from 23 hours ago

0 SL-16 DEB
1 18416U 87027C   26130.02345583  .00000064  00000-0  93364-4 0  9995
2 18416  71.0359 332.3544 0186519 149.8708   3.6807 13.77556331966431

Epoch: 2026-05-10T00:33Z

TLE epoch observation values (Epoch: 2026-05-10T00:33:46.583Z)

Latitude

24.81883°

Longitude

-93.01715°

Altitude

838.194 km

Speed

7.505 km/s

True Right ascension

09h 33m 02s

True Declination

24° 41' 22"

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

07:20:45

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,107.591 km

Perigee altitude

833.458 km

Semi-major axis

7,348.661 km

Eccentricity

0.01865

Inclination

71.0359°

RAAN

332.3544°

Arg. of periapsis

149.8708°

True anomaly

3.82117°

Mean anomaly

3.6807°

Eccentric anomaly

3.75061°

Mean motion

3.44533 °/min

Orbital period

104.49 mins

BSTAR

0.000093364

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Other satellites on launch #27 in the year 1987 (1987-03-18 UTC)

SL-16 DEB, 43323 (Decayed)

SL-16 DEB, 18527

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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.

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SL-16 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.
9 mins	2026-05-11 00:49:12.134Z	330.189° NNW	2026-05-11 00:53:12.134Z	259.413° W	43.248°	2026-05-11 00:58:12.134Z	168.264° S
11 mins	2026-05-11 14:17:12.134Z	182.919° SSW	2026-05-11 14:22:12.134Z	103.7° ESE	41.029°	2026-05-11 14:28:12.134Z	30.596° NE
8 mins	2026-05-11 16:06:12.134Z	267.294° W	2026-05-11 16:09:12.134Z	303.093° NW	22.356°	2026-05-11 16:14:12.134Z	358.061° N

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

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Check out SL-16 DEB, 18416 on other resources

View SL-16 DEB, 18416 on Heavens-Above

View SL-16 DEB, 18416 on Keep Track

View SL-16 DEB, 18416 on Celestrak

View SL-16 DEB, 18416 on Gunter's Space Page

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

SL-16 DEB, 18416

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 23 hours ago

TLE from 23 hours ago

TLE epoch observation values (Epoch: 2026-05-10T00:33:46.583Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #27 in the year 1987 (1987-03-18 UTC)

SL-16 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-16 DEB, 18416 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 23 hours ago