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

CYL, 1.1 m

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 SL-3 R/B
1 05918U 72022B   26260.09022706  .00000022  00000-0  55940-5 0  9990
2 05918  81.2360 296.5020 0058047 188.8692 171.1457 14.06325243792537

Epoch: 2026-09-17T02:09Z

TLE epoch observation values (Epoch: 2026-09-17T02:09:55.617Z)

Latitude

-0.00008°

Longitude

-92.01221°

Altitude

916.465 km

Speed

7.372 km/s

True Right ascension

19h 46m 00s

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

04:13:22

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

911.222 km

Perigee altitude

827.085 km

Semi-major axis

7,247.29 km

Eccentricity

0.0058

Inclination

81.236°

RAAN

296.502°

Arg. of periapsis

188.8692°

True anomaly

171.24736°

Mean anomaly

171.1457°

Eccentric anomaly

171.1966°

Mean motion

3.51787 °/min

Orbital period

102.33 mins

BSTAR

0.000005594

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

METEOR 1-11 DEB, 36306 (Decayed)

METEOR 1-11 DEB, 36305 (Decayed)

METEOR 1-11 DEB, 45503

METEOR 1-11 DEB, 35427 (Decayed)

METEOR 1-11, 5917

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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.
6 mins	2026-09-17 13:00:10.979Z	31.89° NE	2026-09-17 13:03:10.979Z	66.419° ENE	16.705°	2026-09-17 13:06:10.979Z	101.281° ESE
9 mins	2026-09-17 14:43:10.979Z	339.947° N	2026-09-17 14:47:10.979Z	258.078° W	62.224°	2026-09-17 14:52:10.979Z	185.84° SSW
8 mins	2026-09-18 02:12:10.979Z	130.357° SE	2026-09-18 02:15:10.979Z	94.612° ESE	23.513°	2026-09-18 02:20:10.979Z	36.771° NE
10 mins	2026-09-18 03:54:10.979Z	215.93° SW	2026-09-18 03:58:10.979Z	269.472° W	45.027°	2026-09-18 04:04:10.979Z	356.638° N

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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: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-09-17T02:09:55.617Z)

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: 9 hours ago