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.

Loading next visibility...

Iframe embed code

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

Optional secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

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: 4 hours ago

TLE from 4 hours ago

0 SL-8 DEB
1 01477U 65020BB  26224.62296886 -.00000305  00000-0 -27571-3 0  9990
2 01477  55.4913  78.8194 0592553  54.0566 311.3857 12.99777184885554

Epoch: 2026-08-12T14:57Z

TLE epoch observation values (Epoch: 2026-08-12T14:57:04.509Z)

Latitude

-0.00008°

Longitude

-106.52369°

Altitude

980.655 km

Speed

7.497 km/s

True Right ascension

05h 15m 16s

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

09:08:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,715.63 km

Perigee altitude

810.091 km

Semi-major axis

7,640.997 km

Eccentricity

0.05926

Inclination

55.4913°

RAAN

78.8194°

Arg. of periapsis

54.0566°

True anomaly

306.03729°

Mean anomaly

311.3857°

Eccentric anomaly

308.73747°

Mean motion

3.24951 °/min

Orbital period

110.79 mins

BSTAR

-0.00027571

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

SL-8 DEB, 1592 (Decayed)

SL-8 DEB, 1488 (Decayed)

SL-8 DEB, 1531 (Decayed)

SL-8 DEB, 1546 (Decayed)

SL-8 DEB, 1400 (Decayed)

SL-8 DEB, 1481 (Decayed)

SL-8 DEB, 1350 (Decayed)

SL-8 DEB, 1538 (Decayed)

SL-8 DEB, 1337 (Decayed)

SL-8 DEB, 5983 (Decayed)

SL-8 DEB, 1548 (Decayed)

SL-8 DEB, 1561 (Decayed)

SL-8 DEB, 1372 (Decayed)

SL-8 DEB, 3707 (Decayed)

SL-8 DEB, 1417 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

SL-8 DEB Visibility forecast

Loading observer location...
Set Observer location

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	2026-08-12 18:53:23.549Z	282.866° WNW	2026-08-12 18:57:23.549Z	334.812° NNW	23.47°	2026-08-12 19:01:23.549Z	27.523° NE
6 mins	2026-08-12 20:52:23.549Z	335.386° NNW	2026-08-12 20:54:23.549Z	359.369° N	16.821°	2026-08-12 20:58:23.549Z	42.671° NE
10 mins	2026-08-12 22:48:23.549Z	338.307° N	2026-08-12 22:52:23.549Z	38.768° NE	29.33°	2026-08-12 22:58:23.549Z	94.22° ESE
13 mins	2026-08-13 00:42:23.549Z	307.91° NW	2026-08-13 00:47:23.549Z	247.546° W	43.06°	2026-08-13 00:55:23.549Z	146.452° SSE
6 mins	2026-08-13 02:40:23.549Z	260.358° W	2026-08-13 02:42:23.549Z	243.138° WSW	14.383°	2026-08-13 02:46:23.549Z	212.458° SW
5 mins	2026-08-13 15:05:23.549Z	145.616° SSE	2026-08-13 15:07:23.549Z	122.026° SE	15.032°	2026-08-13 15:10:23.549Z	87.162° E
9 mins	2026-08-13 16:58:23.549Z	230.62° WSW	2026-08-13 17:02:23.549Z	3.509° NNE	44.253°	2026-08-13 17:07:23.549Z	44.715° NE

Items per page:

1–7 of 7 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

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: 4 hours ago

TLE from 4 hours ago

TLE epoch observation values (Epoch: 2026-08-12T14:57:04.509Z)

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: 4 hours ago