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 (61 years ago)

Launch vehicle

Unknown

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago

0 SL-8 DEB
1 01477U 65020BB  26123.17133288 -.00000268  00000-0 -23552-3 0  9997
2 01477  55.4959  25.1488 0586603 250.0985 103.5841 12.99628353872369

Epoch: 2026-05-03T04:06Z

TLE epoch observation values (Epoch: 2026-05-03T04:06:43.160Z)

Latitude

0.00002°

Longitude

102.39027°

Altitude

1,394.146 km

Speed

7.103 km/s

True Right ascension

01h 40m 35s

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

17:11:07

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,711.701 km

Perigee altitude

815.186 km

Semi-major axis

7,641.58 km

Eccentricity

0.05866

Inclination

55.4959°

RAAN

25.1488°

Arg. of periapsis

250.0985°

True anomaly

109.99397°

Mean anomaly

103.5841°

Eccentric anomaly

106.80161°

Mean motion

3.24914 °/min

Orbital period

110.8 mins

BSTAR

-0.00023552

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

SL-8 DEB, 1335

SL-8 DEB, 1549

SL-8 DEB, 3963 (Decayed)

SL-8 DEB, 1483 (Decayed)

SL-8 DEB, 1494 (Decayed)

SL-8 DEB, 1496 (Decayed)

SL-8 DEB, 3038

SL-8 DEB, 1486 (Decayed)

SL-8 DEB, 1556 (Decayed)

SL-8 DEB, 1479

SL-8 DEB, 3749

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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	2026-05-04 17:09:28.686Z	135.866° SSE	2026-05-04 17:13:28.686Z	109.668° ESE	14.464°	2026-05-04 17:17:28.686Z	84.522° E
17 mins	2026-05-04 19:00:28.686Z	201.762° SSW	2026-05-04 19:07:28.686Z	135.194° SSE	41.59°	2026-05-04 19:17:28.686Z	51.034° ENE
17 mins	2026-05-04 20:56:28.686Z	257.581° W	2026-05-04 21:04:28.686Z	332.703° NNW	38.842°	2026-05-04 21:13:28.686Z	42.983° NE
15 mins	2026-05-04 22:55:28.686Z	299.22° NW	2026-05-04 23:02:28.686Z	351.214° N	28.773°	2026-05-04 23:10:28.686Z	51.273° ENE
16 mins	2026-05-05 00:53:28.686Z	317.078° NNW	2026-05-05 01:01:28.686Z	18.709° NNE	32.525°	2026-05-05 01:09:28.686Z	84.742° E
16 mins	2026-05-05 02:50:28.686Z	314.297° NW	2026-05-05 02:58:28.686Z	351.284° N	44.774°	2026-05-05 03:06:28.686Z	132.969° SE
12 mins	2026-05-05 04:47:28.686Z	291.974° WNW	2026-05-05 04:53:28.686Z	246.862° WSW	24.206°	2026-05-05 04:59:28.686Z	194.811° 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, 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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-05-03T04:06:43.160Z)

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: 1 day ago