**SL-8 DEB *, 3743**

Orbit data source: Space-Track

SL-8 DEB *, 3743 is space debris in LEO originally from a launch on Mon, 15 Mar 1965 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/3743?theme=dark&initialShowStats=false

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Identifier

3743, 1965-020ES

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1965-03-15 (62 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.050 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 SL-8 DEB *
1 03743U 65020ES  26316.28667354 -.00000129  00000-0 -37061-3 0  9993
2 03743  56.6615 249.9007 0257571 230.8330 290.1938 12.20736478592238

Epoch: 2026-11-12T06:52Z

TLE epoch observation values (Epoch: 2026-11-12T06:52:48.593Z)

Latitude

18.07499°

Longitude

-97.06035°

Altitude

1,523.778 km

Speed

7.135 km/s

True Right ascension

03h 50m 15s

True Declination

17° 59' 01"

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

19:42:01

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,794.293 km

Perigee altitude

1,383.868 km

Semi-major axis

7,967.217 km

Eccentricity

0.02576

Inclination

56.6615°

RAAN

249.9007°

Arg. of periapsis

230.833°

True anomaly

287.39368°

Mean anomaly

290.1938°

Eccentric anomaly

288.79673°

Mean motion

3.05199 °/min

Orbital period

117.96 mins

BSTAR

-0.00037061

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Other satellites on launch #20 in the year 1965 (1965-03-15 UTC)

SL-8 DEB, 1531 (Decayed)

SL-8 DEB, 1598 (Decayed)

SL-8 DEB, 1486 (Decayed)

SL-8 DEB, 1354 (Decayed)

SL-8 DEB, 1538 (Decayed)

SL-8 DEB, 1560 (Decayed)

SL-8 DEB, 1559 (Decayed)

SL-8 DEB, 1495 (Decayed)

SL-8 DEB, 1487 (Decayed)

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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.
19 mins	2026-11-12 23:54:07.216Z	264.189° W	2026-11-13 00:03:07.216Z	328.545° NNW	44.326°	2026-11-13 00:13:07.216Z	42.759° NE
16 mins	2026-11-13 02:02:07.216Z	306.589° NW	2026-11-13 02:10:07.216Z	3.44° NNE	30.762°	2026-11-13 02:18:07.216Z	58.55° ENE
17 mins	2026-11-13 04:08:07.216Z	322.265° NNW	2026-11-13 04:16:07.216Z	29.524° NE	46.287°	2026-11-13 04:25:07.216Z	100.564° ESE
18 mins	2026-11-13 06:11:07.216Z	311.417° NW	2026-11-13 06:20:07.216Z	230.447° WSW	68.4°	2026-11-13 06:29:07.216Z	152.261° SSE
7 mins	2026-11-13 08:18:07.216Z	274.265° WNW	2026-11-13 08:21:07.216Z	254.561° W	14.591°	2026-11-13 08:25:07.216Z	227.215° WSW
10 mins	2026-11-13 19:27:07.216Z	139.239° SSE	2026-11-13 19:32:07.216Z	107.804° ESE	17.535°	2026-11-13 19:37:07.216Z	77.63° E
19 mins	2026-11-13 21:25:07.216Z	207.008° SW	2026-11-13 21:34:07.216Z	112.282° ESE	70.091°	2026-11-13 21:44:07.216Z	47.464° ENE

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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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Check out SL-8 DEB *, 3743 on other resources

View SL-8 DEB *, 3743 on Heavens-Above

View SL-8 DEB *, 3743 on Keep Track

View SL-8 DEB *, 3743 on Celestrak

View SL-8 DEB *, 3743 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 *, 3743

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2026-11-12T06:52:48.593Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #20 in the year 1965 (1965-03-15 UTC)

SL-8 DEB * Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-8 DEB *, 3743 on other resources

Documentation

**SL-8 DEB *, 3743**

Expand to show TLE details & history
Last TLE update: 16 hours ago