**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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 23 hours ago

TLE from 23 hours ago

0 SL-8 DEB *
1  3743U 65020ES  25336.31597527  .00000011  00000-0  83842-3 0  9998
2  3743  56.6635  38.0162 0259977 187.2853 250.0444 12.20701223550114

Epoch: 2025-12-02T07:35Z

TLE epoch observation values (Epoch: 2025-12-02T07:35:00.263Z)

Latitude

53.76503°

Longitude

-83.84589°

Altitude

1,672.041 km

Speed

7.01 km/s

True Right ascension

06h 45m 13s

True Declination

53° 37' 10"

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

04:26:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,796.367 km

Perigee altitude

1,382.1 km

Semi-major axis

7,967.371 km

Eccentricity

0.026

Inclination

56.6635°

RAAN

38.0162°

Arg. of periapsis

187.2853°

True anomaly

247.27596°

Mean anomaly

250.0444°

Eccentric anomaly

248.657°

Mean motion

3.0519 °/min

Orbital period

117.96 mins

BSTAR

0.00083842

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

SL-8 DEB, 1544 (Decayed)

SL-8 DEB, 1342 (Decayed)

SL-8 DEB, 2339 (Decayed)

SL-8 DEB, 1549

SL-8 DEB, 1335

SL-8 DEB, 1565 (Decayed)

SL-8 DEB, 1492 (Decayed)

SL-8 DEB, 1410 (Decayed)

SL-8 DEB, 1495 (Decayed)

SL-8 DEB, 1402 (Decayed)

SL-8 DEB, 3963 (Decayed)

SL-8 DEB *, 3745

SL-8 DEB, 1480

SL-8 DEB *, 3931

SL-8 DEB, 1547 (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.
20 mins	2025-12-03 06:52:28.844Z	228.138° WSW	2025-12-03 07:02:28.844Z	299.466° NW	44.538°	2025-12-03 07:12:28.844Z	43.6° NE
16 mins	2025-12-03 08:59:28.844Z	279.459° WNW	2025-12-03 09:07:28.844Z	338.56° N	30.294°	2025-12-03 09:15:28.844Z	41.196° NE
14 mins	2025-12-03 11:07:28.844Z	317.938° NNW	2025-12-03 11:13:28.844Z	3.705° NNE	26.425°	2025-12-03 11:21:28.844Z	66.307° ENE
16 mins	2025-12-03 13:11:28.844Z	320.899° NNW	2025-12-03 13:19:28.844Z	37.838° NE	39.854°	2025-12-03 13:27:28.844Z	112.94° SE
14 mins	2025-12-03 15:15:28.844Z	302.546° NW	2025-12-03 15:22:28.844Z	237.674° WSW	35.317°	2025-12-03 15:29:28.844Z	171.734° S
15 mins	2025-12-04 04:27:28.844Z	164.642° S	2025-12-04 04:34:28.844Z	118.484° SE	25.192°	2025-12-04 04:42:28.844Z	64.41° ENE
9 mins	2025-12-04 06:28:28.844Z	223.786° SW	2025-12-04 06:37:28.844Z	342.704° N	44.953°	2025-12-04 06:37:28.844Z	342.704° N

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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: 23 hours ago

TLE from 23 hours ago

TLE epoch observation values (Epoch: 2025-12-02T07:35:00.263Z)

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: 23 hours ago