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 shape, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 SL-16 DEB
1 18417U 87027D   26130.23932025  .00000060  00000-0  94340-4 0  9993
2 18417  71.0000  57.7143 0202184 330.9264 144.1506 13.74657496962305

Epoch: 2026-05-10T05:44Z

TLE epoch observation values (Epoch: 2026-05-10T05:44:37.269Z)

Latitude

57.97848°

Longitude

-109.70069°

Altitude

1,113.778 km

Speed

7.241 km/s

True Right ascension

13h 37m 59s

True Declination

57° 49' 52"

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

07:19:35

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,129.648 km

Perigee altitude

832.074 km

Semi-major axis

7,358.998 km

Eccentricity

0.02022

Inclination

71°

RAAN

57.7143°

Arg. of periapsis

330.9264°

True anomaly

145.48011°

Mean anomaly

144.1506°

Eccentric anomaly

144.81806°

Mean motion

3.43807 °/min

Orbital period

104.71 mins

BSTAR

0.00009434

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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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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 04:25:01.598Z	5.596° NNE	2026-05-11 04:30:01.598Z	51.799° ENE	17.883°	2026-05-11 04:34:01.598Z	87.896° E
12 mins	2026-05-11 06:12:01.598Z	337.769° N	2026-05-11 06:18:01.598Z	120.935° SE	44.906°	2026-05-11 06:24:01.598Z	157.336° SSE
6 mins	2026-05-11 08:02:01.598Z	284.359° WNW	2026-05-11 08:04:01.598Z	265.507° W	15.526°	2026-05-11 08:08:01.598Z	230.458° WSW
10 mins	2026-05-11 19:43:01.598Z	170.75° S	2026-05-11 19:47:01.598Z	117.055° SE	34.53°	2026-05-11 19:53:01.598Z	36.468° NE
9 mins	2026-05-11 21:31:01.598Z	254.876° W	2026-05-11 21:35:01.598Z	309.211° NW	26.283°	2026-05-11 21:40:01.598Z	3.518° NNE

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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: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-05-10T05:44:37.269Z)

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: 17 hours ago