SL-16 DEB, 18417

Orbit data source: Space-Track

SL-16 DEB, 18417 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/18417?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/18417?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18417, 1987-027D

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, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 SL-16 DEB
1 18417U 87027D   26040.72938338  .00000118  00000-0  14574-3 0  9994
2 18417  70.9962 233.5684 0199492  98.8212 343.3430 13.74635621950003

Epoch: 2026-02-09T17:30Z

TLE epoch observation values (Epoch: 2026-02-09T17:30:18.724Z)

Latitude

69.33996°

Longitude

-103.52814°

Altitude

853.969 km

Speed

7.503 km/s

True Right ascension

19h 55m 28s

True Declination

69° 13' 40"

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

04:23:04

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,127.747 km

Perigee altitude

834.131 km

Semi-major axis

7,359.076 km

Eccentricity

0.01995

Inclination

70.9962°

RAAN

233.5684°

Arg. of periapsis

98.8212°

True anomaly

342.67173°

Mean anomaly

343.343°

Eccentric anomaly

343.00899°

Mean motion

3.43802 °/min

Orbital period

104.71 mins

BSTAR

0.00014574

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

SL-16 DEB, 18550

SL-16 DEB, 43323 (Decayed)

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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.
10 mins	2026-02-10 14:11:51.473Z	204.924° SW	2026-02-10 14:16:51.473Z	284.308° WNW	44.796°	2026-02-10 14:21:51.473Z	21.187° NNE
9 mins	2026-02-10 23:22:51.473Z	351.624° N	2026-02-10 23:26:51.473Z	71.574° E	39.275°	2026-02-10 23:31:51.473Z	139.924° SSE
6 mins	2026-02-11 01:10:51.473Z	290.401° WNW	2026-02-11 01:12:51.473Z	265.753° W	18.28°	2026-02-11 01:16:51.473Z	219.279° SW

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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, 18417 on other resources

View SL-16 DEB, 18417 on Heavens-Above

View SL-16 DEB, 18417 on Keep Track

View SL-16 DEB, 18417 on Celestrak

View SL-16 DEB, 18417 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, 18417

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-02-09T17:30:18.724Z)

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, 18417 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago