SL-8 DEB, 1590

Orbit data source: Space-Track

SL-8 DEB, 1590 is space debris in LEO originally from a launch on Sat, 18 Sep 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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<iframe src="https://www.satcat.com/sats-embedded/1590?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/1590?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

1590, 1965-073G

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1965-09-18 (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: 19 hours ago

TLE from 19 hours ago

0 SL-8 DEB
1 01590U 65073G   26199.49486667 -.00000412  00000-0 -19602-2 0  9992
2 01590  56.0856  11.0515 0178025  80.5960 313.8437 12.49856063762256

Epoch: 2026-07-18T11:52Z

TLE epoch observation values (Epoch: 2026-07-18T11:52:36.480Z)

Latitude

26.89373°

Longitude

-83.57267°

Altitude

1,371.163 km

Speed

7.22 km/s

True Right ascension

02h 03m 32s

True Declination

26° 45' 58"

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

19:46:53

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,604.542 km

Perigee altitude

1,325.29 km

Semi-major axis

7,843.053 km

Eccentricity

0.0178

Inclination

56.0856°

RAAN

11.0515°

Arg. of periapsis

80.596°

True anomaly

312.34952°

Mean anomaly

313.8437°

Eccentric anomaly

313.09892°

Mean motion

3.12475 °/min

Orbital period

115.21 mins

BSTAR

-0.0019602

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Other satellites on launch #73 in the year 1965 (1965-09-18 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.
14 mins	2026-07-19 12:45:59.425Z	189.258° SSW	2026-07-19 12:52:59.425Z	122.138° SE	34.555°	2026-07-19 12:59:59.425Z	57.389° ENE
14 mins	2026-07-19 14:45:59.425Z	248.342° W	2026-07-19 14:52:59.425Z	322.581° NNW	39.668°	2026-07-19 14:59:59.425Z	39.014° NE
11 mins	2026-07-19 16:49:59.425Z	302.145° NW	2026-07-19 16:54:59.425Z	348.342° N	24.45°	2026-07-19 17:00:59.425Z	41.285° NE
13 mins	2026-07-19 18:51:59.425Z	322.879° NNW	2026-07-19 18:57:59.425Z	18.128° NNE	26.897°	2026-07-19 19:04:59.425Z	77.12° E
15 mins	2026-07-19 20:52:59.425Z	318.566° NNW	2026-07-19 20:59:59.425Z	65.881° ENE	43.61°	2026-07-19 21:07:59.425Z	127.139° SE
12 mins	2026-07-19 22:53:59.425Z	289.342° WNW	2026-07-19 22:58:59.425Z	243.83° WSW	26.749°	2026-07-19 23:05:59.425Z	185.224° SSW

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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, 1590 on other resources

View SL-8 DEB, 1590 on Heavens-Above

View SL-8 DEB, 1590 on Keep Track

View SL-8 DEB, 1590 on Celestrak

View SL-8 DEB, 1590 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, 1590

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2026-07-18T11:52:36.480Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #73 in the year 1965 (1965-09-18 UTC)

SL-8 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-8 DEB, 1590 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 19 hours ago