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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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  25338.70949282  .00000756  00000-0  13062-2 0  9996
2 01477  55.4892 116.3372 0585023   9.5722 351.5799 12.99339612852936

Epoch: 2025-12-04T17:01Z

TLE epoch observation values (Epoch: 2025-12-04T17:01:40.179Z)

Latitude

-0.0001°

Longitude

147.15768°

Altitude

824.014 km

Speed

7.654 km/s

True Right ascension

07h 45m 20s

True Declination

0° 00' 00"

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

01:48:34

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,711.692 km

Perigee altitude

817.46 km

Semi-major axis

7,642.713 km

Eccentricity

0.0585

Inclination

55.4892°

RAAN

116.3372°

Arg. of periapsis

9.5722°

True anomaly

350.52203°

Mean anomaly

351.5799°

Eccentric anomaly

351.05895°

Mean motion

3.24842 °/min

Orbital period

110.82 mins

BSTAR

0.0013062

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

SL-8 DEB, 1401 (Decayed)

SL-8 DEB, 1530 (Decayed)

SL-8 DEB, 1560 (Decayed)

SL-8 DEB, 1563 (Decayed)

SL-8 DEB, 2339 (Decayed)

SL-8 DEB, 1372 (Decayed)

SL-8 DEB, 1551 (Decayed)

SL-8 DEB, 1554 (Decayed)

SL-8 DEB, 1545 (Decayed)

SL-8 DEB, 1343 (Decayed)

SL-8 DEB, 1416 (Decayed)

SL-8 DEB, 1495 (Decayed)

SL-8 DEB, 1478

SL-8 DEB, 1493 (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.
5 mins	2025-12-06 09:47:17.017Z	142.913° SSE	2025-12-06 09:49:17.017Z	120.493° SE	13.888°	2025-12-06 09:52:17.017Z	87.887° E
10 mins	2025-12-06 11:40:17.017Z	226.022° WSW	2025-12-06 11:44:17.017Z	35.072° NE	44.651°	2025-12-06 11:50:17.017Z	46.232° ENE
10 mins	2025-12-06 13:36:17.017Z	289.684° WNW	2025-12-06 13:40:17.017Z	340.342° N	25.65°	2025-12-06 13:46:17.017Z	38.96° NE
10 mins	2025-12-06 15:34:17.017Z	326.986° NNW	2025-12-06 15:38:17.017Z	9.832° NNE	22.127°	2025-12-06 15:44:17.017Z	58.957° ENE
14 mins	2025-12-06 17:30:17.017Z	327.727° NNW	2025-12-06 17:35:17.017Z	25.139° NE	35.294°	2025-12-06 17:44:17.017Z	103.017° ESE
16 mins	2025-12-06 19:25:17.017Z	306.408° NW	2025-12-06 19:32:17.017Z	214.059° SW	42.178°	2025-12-06 19:41:17.017Z	151.014° SSE
8 mins	2025-12-06 21:23:17.017Z	269.148° W	2025-12-06 21:27:17.017Z	240.697° WSW	15.68°	2025-12-06 21:31:17.017Z	215.065° SW

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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: 2025-12-04T17:01:40.179Z)

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