SL-8 DEB, 56997

Orbit data source: Space-Track

SL-8 DEB, 56997 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/56997?theme=dark&initialShowStats=false

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ISO8601 Format

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ISO8601 Format

Identifier

56997, 1971-086K

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, 0.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 11 months ago

TLE from 11 months ago

0 SL-8 DEB
1 56997U 71086K   25192.08919194  .00000043  00000-0  50040-3 0  9997
2 56997  74.0230  72.4683 0076147  73.3906 357.1599 12.27882780521425

Epoch: 2025-07-11T02:08Z

TLE epoch observation values (Epoch: 2025-07-11T02:08:26.183Z)

Latitude

65.08457°

Longitude

148.9454°

Altitude

1,508.891 km

Speed

7.143 km/s

True Right ascension

07h 21m 12s

True Declination

64° 57' 56"

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

21:27:04

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,616.67 km

Perigee altitude

1,495.834 km

Semi-major axis

7,934.389 km

Eccentricity

0.00761

Inclination

74.023°

RAAN

72.4683°

Arg. of periapsis

73.3906°

True anomaly

357.11625°

Mean anomaly

357.1599°

Eccentric anomaly

357.13812°

Mean motion

3.07095 °/min

Orbital period

117.23 mins

BSTAR

0.0005004

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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.
11 mins	2026-06-22 11:20:04.222Z	130.553° SE	2026-06-22 11:26:04.222Z	87.12° E	19.391°	2026-06-22 11:31:04.222Z	51.391° ENE
16 mins	2026-06-22 13:17:04.222Z	201.812° SSW	2026-06-22 13:24:04.222Z	267.856° W	44.706°	2026-06-22 13:33:04.222Z	17.558° NNE
11 mins	2026-06-22 15:21:04.222Z	278.144° WNW	2026-06-22 15:26:04.222Z	316.221° NNW	19.092°	2026-06-22 15:32:04.222Z	356.991° N
14 mins	2026-06-22 21:36:04.222Z	4.801° NNE	2026-06-22 21:42:04.222Z	52.809° ENE	26.077°	2026-06-22 21:50:04.222Z	111.746° ESE
16 mins	2026-06-22 23:35:04.222Z	335.369° NNW	2026-06-22 23:43:04.222Z	243.463° WSW	43.344°	2026-06-22 23:51:04.222Z	175.452° S
4 mins	2026-06-23 01:39:04.222Z	285.599° WNW	2026-06-23 01:41:04.222Z	272.364° WNW	12.083°	2026-06-23 01:43:04.222Z	259.334° W

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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, 56997 on other resources

View SL-8 DEB, 56997 on Heavens-Above

View SL-8 DEB, 56997 on Keep Track

View SL-8 DEB, 56997 on Celestrak

View SL-8 DEB, 56997 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, 56997

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 months ago

TLE from 11 months ago

TLE epoch observation values (Epoch: 2025-07-11T02:08:26.183Z)

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, 56997 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 months ago