**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 (61 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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 SL-8 DEB *
1 03743U 65020ES  26192.45609023 -.00000038  00000-0  42454-3 0  9993
2 03743  56.6573 201.5332 0259693  86.1972  60.8576 12.20716177577111

Epoch: 2026-07-11T10:56Z

TLE epoch observation values (Epoch: 2026-07-11T10:56:46.195Z)

Latitude

24.9875°

Longitude

-89.79404°

Altitude

1,494.087 km

Speed

7.163 km/s

True Right ascension

00h 15m 04s

True Declination

24° 52' 06"

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

21:06:52

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,796.075 km

Perigee altitude

1,382.264 km

Semi-major axis

7,967.306 km

Eccentricity

0.02597

Inclination

56.6573°

RAAN

201.5332°

Arg. of periapsis

86.1972°

True anomaly

63.49754°

Mean anomaly

60.8576°

Eccentric anomaly

62.17347°

Mean motion

3.05194 °/min

Orbital period

117.96 mins

BSTAR

0.00042454

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Other satellites on launch #20 in the year 1965 (1965-03-15 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.
16 mins	2026-07-12 10:17:17.434Z	317.62° NNW	2026-07-12 10:25:17.434Z	69.086° E	44.211°	2026-07-12 10:33:17.434Z	130.363° SE
12 mins	2026-07-12 12:22:17.434Z	287.041° WNW	2026-07-12 12:27:17.434Z	243.128° WSW	25.146°	2026-07-12 12:34:17.434Z	189.472° SSW
14 mins	2026-07-13 01:34:17.434Z	183.278° SSW	2026-07-13 01:41:17.434Z	122.795° SE	32.397°	2026-07-13 01:48:17.434Z	59.435° ENE
15 mins	2026-07-13 03:37:17.434Z	244.582° WSW	2026-07-13 03:44:17.434Z	323.634° NNW	41.072°	2026-07-13 03:52:17.434Z	40.624° NE
12 mins	2026-07-13 05:43:17.434Z	296.691° NW	2026-07-13 05:49:17.434Z	349.474° N	24.799°	2026-07-13 05:55:17.434Z	40.036° NE
12 mins	2026-07-13 07:49:17.434Z	324.943° NNW	2026-07-13 07:55:17.434Z	20.005° NNE	26.136°	2026-07-13 08:01:17.434Z	70.957° E

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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 *, 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: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-07-11T10:56:46.195Z)

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: 22 hours ago