SL-3 R/B, 5918

Orbit data source: Space-Track

SL-3 R/B, 5918 is space debris in LEO originally from a launch on Thu, 30 Mar 1972 UTC launched from the Plesetsk Missile And Space Complex (PKMTR). 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/5918?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

5918, 1972-022B

Orbit

LEO

Country

CIS

Related business

Russian Strategic Rocket Forces (RU)

Manufacturer

Progress

Mission

Spacecraft

Bus & Motor

BLOK-E, Unknown motor

Mass

1,440 kg wet, 1,440 kg dry

Launch date (UTC)

1972-03-30 (54 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 SL-3 R/B
1  5918U 72022B   26171.29880074 -.00000071  00000-0 -50458-4 0  9997
2  5918  81.2374  22.4634 0059565  80.2490 280.5399 14.06314509780053

Epoch: 2026-06-20T07:10Z

TLE epoch observation values (Epoch: 2026-06-20T07:10:16.383Z)

Latitude

-0.00003°

Longitude

6.37971°

Altitude

867.253 km

Speed

7.423 km/s

True Right ascension

01h 29m 51s

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

23:20:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

912.359 km

Perigee altitude

826.022 km

Semi-major axis

7,247.327 km

Eccentricity

0.00596

Inclination

81.2374°

RAAN

22.4634°

Arg. of periapsis

80.249°

True anomaly

279.86795°

Mean anomaly

280.5399°

Eccentric anomaly

280.20402°

Mean motion

3.51784 °/min

Orbital period

102.34 mins

BSTAR

-0.000050458

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Other satellites on launch #22 in the year 1972 (1972-03-30 UTC)

METEOR 1-11, 5917

METEOR 1-11 DEB, 45503

METEOR 1-11 DEB, 35427 (Decayed)

METEOR 1-11 DEB, 36306 (Decayed)

METEOR 1-11 DEB, 36305 (Decayed)

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SL-3 R/B 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.
9 mins	2026-06-22 13:55:44.641Z	149.15° SSE	2026-06-22 13:59:44.641Z	95.063° ESE	28.548°	2026-06-22 14:04:44.641Z	28.943° NE
8 mins	2026-06-22 15:39:44.641Z	236.373° WSW	2026-06-22 15:43:44.641Z	296.67° NW	25.691°	2026-06-22 15:47:44.641Z	345.8° N
7 mins	2026-06-23 00:38:44.641Z	26.317° NE	2026-06-23 00:41:44.641Z	67.632° E	23.44°	2026-06-23 00:45:44.641Z	120.841° SE
8 mins	2026-06-23 02:21:44.641Z	327.159° NNW	2026-06-23 02:25:44.641Z	259.453° W	32.073°	2026-06-23 02:29:44.641Z	205.021° 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-3 R/B, 5918 on other resources

View SL-3 R/B, 5918 on Heavens-Above

View SL-3 R/B, 5918 on Keep Track

View SL-3 R/B, 5918 on Celestrak

View SL-3 R/B, 5918 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-3 R/B, 5918

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T07:10:16.383Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #22 in the year 1972 (1972-03-30 UTC)

SL-3 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-3 R/B, 5918 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago