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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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

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 SL-16 DEB
1 18417U 87027D   25258.46566721  .00000045  00000-0  81077-4 0  9990
2 18417  70.9997 162.8837 0203366 307.6945 235.0593 13.74582413929761

Epoch: 2025-09-15T11:10Z

TLE epoch observation values (Epoch: 2025-09-15T11:10:33.646Z)

Latitude

-0.93284°

Longitude

-179.10682°

Altitude

1,073.407 km

Speed

7.272 km/s

True Right ascension

22h 52m 48s

True Declination

0° 55' 39"

Sunlit

Object was in full shadow 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

13:52:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,130.791 km

Perigee altitude

831.466 km

Semi-major axis

7,359.266 km

Eccentricity

0.02034

Inclination

70.9997°

RAAN

162.8837°

Arg. of periapsis

307.6945°

True anomaly

233.17673°

Mean anomaly

235.0593°

Eccentric anomaly

234.11526°

Mean motion

3.43789 °/min

Orbital period

104.72 mins

BSTAR

0.000081077

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

SL-16 DEB, 43323 (Decayed)

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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.
4 mins	2025-09-16 02:33:33.100Z	22.969° NE	2025-09-16 02:35:33.100Z	40.054° NE	12.128°	2025-09-16 02:37:33.100Z	57.199° ENE
12 mins	2025-09-16 04:18:33.100Z	347.18° N	2025-09-16 04:24:33.100Z	63.387° ENE	39.584°	2025-09-16 04:30:33.100Z	137.542° SSE
10 mins	2025-09-16 06:06:33.100Z	309.107° NW	2025-09-16 06:11:33.100Z	256.569° W	25.041°	2025-09-16 06:16:33.100Z	207.468° SW
9 mins	2025-09-16 17:50:33.100Z	145.3° SSE	2025-09-16 17:54:33.100Z	95.725° ESE	23.824°	2025-09-16 17:59:33.100Z	46.127° ENE
10 mins	2025-09-16 19:36:33.100Z	229.886° WSW	2025-09-16 19:40:33.100Z	284.628° WNW	37.134°	2025-09-16 19:46:33.100Z	11.143° NNE

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: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2025-09-15T11:10:33.646Z)

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: 10 hours ago