SL-8 DEB, 1477

Orbit data source: Space-Track

SL-8 DEB, 1477 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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Iframe URL

https://www.satcat.com/sats-embedded/1477?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

1477, 1965-020BB

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, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

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

TLE from 11 hours ago

0 SL-8 DEB
1 01477U 65020BB  26270.07734808 -.00000786  00000-0 -99573-3 0  9995
2 01477  55.4921 301.5450 0586530 127.3347 238.2516 12.99730590891469

Epoch: 2026-09-27T01:51Z

TLE epoch observation values (Epoch: 2026-09-27T01:51:22.874Z)

Latitude

-0°

Longitude

-92.17655°

Altitude

1,518.161 km

Speed

6.988 km/s

True Right ascension

20h 06m 10s

True Declination

0° 00' 00"

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

06:25:53

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,711.221 km

Perigee altitude

814.865 km

Semi-major axis

7,641.18 km

Eccentricity

0.05865

Inclination

55.4921°

RAAN

301.545°

Arg. of periapsis

127.3347°

True anomaly

232.75716°

Mean anomaly

238.2516°

Eccentric anomaly

235.48264°

Mean motion

3.2494 °/min

Orbital period

110.79 mins

BSTAR

-0.00099573

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

SL-8 DEB, 1541 (Decayed)

SL-8 DEB, 1556 (Decayed)

SL-8 R/B, 1270 (Decayed)

SL-8 DEB, 1565 (Decayed)

SL-8 DEB, 1560 (Decayed)

SL-8 DEB, 1401 (Decayed)

SL-8 DEB, 1480

SL-8 DEB, 1478

SL-8 DEB, 1437 (Decayed)

SL-8 DEB, 1352 (Decayed)

SL-8 DEB *, 3745

SL-8 DEB, 3749

SL-8 DEB *, 3743

SL-8 DEB, 1345 (Decayed)

SL-8 DEB, 13517

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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.
8 mins	2026-09-27 13:33:01.668Z	284.064° WNW	2026-09-27 13:37:01.668Z	228.385° WSW	24.67°	2026-09-27 13:41:01.668Z	182.993° SSW
13 mins	2026-09-28 03:49:01.668Z	199.685° SSW	2026-09-28 03:56:01.668Z	127.461° SE	51.645°	2026-09-28 04:02:01.668Z	56.943° ENE
11 mins	2026-09-28 05:46:01.668Z	258.908° W	2026-09-28 05:52:01.668Z	335.913° NNW	44.49°	2026-09-28 05:57:01.668Z	35.36° NE
7 mins	2026-09-28 07:45:01.668Z	311.999° NW	2026-09-28 07:48:01.668Z	343.269° N	19.571°	2026-09-28 07:52:01.668Z	29.59° NE
7 mins	2026-09-28 09:43:01.668Z	339.198° N	2026-09-28 09:46:01.668Z	17.947° NNE	21.831°	2026-09-28 09:50:01.668Z	66.254° ENE
9 mins	2026-09-28 11:38:01.668Z	319.612° NNW	2026-09-28 11:42:01.668Z	24.017° NE	69.095°	2026-09-28 11:47:01.668Z	124.454° SE

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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, 1477 on other resources

View SL-8 DEB, 1477 on Heavens-Above

View SL-8 DEB, 1477 on Keep Track

View SL-8 DEB, 1477 on Celestrak

View SL-8 DEB, 1477 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, 1477

Orbit data source: Space-Track

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

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-09-27T01:51:22.874Z)

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, 1477 on other resources

Documentation

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