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 (40 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

CONE, 0.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 SL-16 DEB
1 18417U 87027D   26310.60555135  .00000027  00000-0  62636-4 0  9993
2 18417  70.9995  63.3365 0199160  74.7123 301.1995 13.74683014987096

Epoch: 2026-11-06T14:31Z

TLE epoch observation values (Epoch: 2026-11-06T14:31:59.636Z)

Latitude

13.13574°

Longitude

164.10005°

Altitude

910.631 km

Speed

7.435 km/s

True Right ascension

04h 31m 41s

True Declination

13° 03' 41"

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

18:14:43

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,127.33 km

Perigee altitude

834.21 km

Semi-major axis

7,358.907 km

Eccentricity

0.01992

Inclination

70.9995°

RAAN

63.3365°

Arg. of periapsis

74.7123°

True anomaly

299.22228°

Mean anomaly

301.1995°

Eccentric anomaly

300.21341°

Mean motion

3.43814 °/min

Orbital period

104.71 mins

BSTAR

0.000062636

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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.
8 mins	2026-11-07 08:02:38.562Z	156.175° SSE	2026-11-07 08:06:38.562Z	107.746° ESE	27.568°	2026-11-07 08:10:38.562Z	52.823° ENE
9 mins	2026-11-07 09:49:38.562Z	237.177° WSW	2026-11-07 09:53:38.562Z	295.804° NW	38.896°	2026-11-07 09:58:38.562Z	6.786° NNE
6 mins	2026-11-07 17:13:38.562Z	24.378° NE	2026-11-07 17:15:38.562Z	48.823° ENE	18.671°	2026-11-07 17:19:38.562Z	92.804° ESE
10 mins	2026-11-07 18:59:38.562Z	329.412° NNW	2026-11-07 19:03:38.562Z	240.31° WSW	71.377°	2026-11-07 19:09:38.562Z	167.201° S

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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: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-11-06T14:31:59.636Z)

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: 8 hours ago