SL-16 R/B, 17590

Orbit data source: Space-Track

SL-16 R/B, 17590 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/17590?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/17590?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

17590, 1987-027B

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

11S772, Unknown motor

Mass

9,000 kg wet, 9,000 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

Cyl, 5.2 m

Radar Cross Section

37.829 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 SL-16 R/B
1 17590U 87027B   26040.81139616 -.00000205  00000-0 -77718-4 0  9996
2 17590  71.0049 335.2401 0005036 191.4689 168.6321 14.17163186 11394

Epoch: 2026-02-09T19:28Z

TLE epoch observation values (Epoch: 2026-02-09T19:28:24.628Z)

Latitude

0°

Longitude

-96.76337°

Altitude

840.928 km

Speed

7.431 km/s

True Right ascension

22h 20m 57s

True Declination

0° 00' 00"

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

04:22:23

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

836.516 km

Perigee altitude

829.253 km

Semi-major axis

7,211.022 km

Eccentricity

0.0005

Inclination

71.0049°

RAAN

335.2401°

Arg. of periapsis

191.4689°

True anomaly

168.64347°

Mean anomaly

168.6321°

Eccentric anomaly

168.63778°

Mean motion

3.54444 °/min

Orbital period

101.57 mins

BSTAR

-0.000077718

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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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SL-16 R/B 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 06:11:10.565Z	348.606° N	2026-02-10 06:16:10.565Z	59.892° ENE	36.777°	2026-02-10 06:21:10.565Z	135.181° SSE
6 mins	2026-02-10 07:57:10.565Z	294.022° NW	2026-02-10 08:00:10.565Z	252.31° W	20.457°	2026-02-10 08:03:10.565Z	215.77° SW
9 mins	2026-02-10 21:01:10.565Z	209.897° SW	2026-02-10 21:05:10.565Z	280.694° WNW	44.035°	2026-02-10 21:10:10.565Z	19.114° 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 R/B, 17590 on other resources

View SL-16 R/B, 17590 on Heavens-Above

View SL-16 R/B, 17590 on Keep Track

View SL-16 R/B, 17590 on Celestrak

View SL-16 R/B, 17590 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 R/B, 17590

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-02-09T19:28:24.628Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SL-16 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-16 R/B, 17590 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago