SL-8 DEB, 56998

Orbit data source: Space-Track

SL-8 DEB, 56998 is space debris in LEO originally from a launch on Wed, 13 Oct 1971 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). 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 URL

https://www.satcat.com/sats-embedded/56998?theme=dark&initialShowStats=false

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ISO8601 Format

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ISO8601 Format

Identifier

56998, 1971-086L

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

RVSN

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1971-10-13 (55 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 1.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 1 month ago

TLE from 1 month ago

0 SL-8 DEB
1 56998U 71086L   26139.39047434  .00000022  00000-0  32192-3 0  9998
2 56998  74.0261  38.2535 0074755 348.3052  11.6247 12.27774336554588

Epoch: 2026-05-19T09:22Z

TLE epoch observation values (Epoch: 2026-05-19T09:22:16.982Z)

Latitude

-0.00008°

Longitude

20.61765°

Altitude

1,503.105 km

Speed

7.139 km/s

True Right ascension

02h 33m 00s

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

21:33:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,616.037 km

Perigee altitude

1,497.403 km

Semi-major axis

7,934.857 km

Eccentricity

0.00748

Inclination

74.0261°

RAAN

38.2535°

Arg. of periapsis

348.3052°

True anomaly

11.7989°

Mean anomaly

11.6247°

Eccentric anomaly

11.71164°

Mean motion

3.07068 °/min

Orbital period

117.24 mins

BSTAR

0.00032192

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Other satellites on launch #86 in the year 1971 (1971-10-13 UTC)

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SL-8 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.
17 mins	2026-06-22 12:45:14.956Z	176.016° S	2026-06-22 12:53:14.956Z	110.937° ESE	39.991°	2026-06-22 13:02:14.956Z	27.083° NE
14 mins	2026-06-22 14:47:14.956Z	245.689° WSW	2026-06-22 14:54:14.956Z	308.097° NW	29.685°	2026-06-22 15:01:14.956Z	2.693° NNE
9 mins	2026-06-22 21:06:14.956Z	16.121° NNE	2026-06-22 21:10:14.956Z	44.186° NE	16.288°	2026-06-22 21:15:14.956Z	78.195° E
17 mins	2026-06-22 23:04:14.956Z	347.172° N	2026-06-22 23:12:14.956Z	75.594° E	42.927°	2026-06-22 23:21:14.956Z	150.907° SSE
13 mins	2026-06-23 01:05:14.956Z	312.149° NW	2026-06-23 01:11:14.956Z	264.603° W	24.534°	2026-06-23 01:18:14.956Z	215.239° 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-8 DEB, 56998 on other resources

View SL-8 DEB, 56998 on Heavens-Above

View SL-8 DEB, 56998 on Keep Track

View SL-8 DEB, 56998 on Celestrak

View SL-8 DEB, 56998 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-8 DEB, 56998

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 month ago

TLE from 1 month ago

TLE epoch observation values (Epoch: 2026-05-19T09:22:16.982Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #86 in the year 1971 (1971-10-13 UTC)

SL-8 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-8 DEB, 56998 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 month ago