SL-14 R/B, 20741

Orbit data source: Space-Track

SL-14 R/B, 20741 is space debris in LEO originally from a launch on Wed, 08 Aug 1990 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/20741?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/20741?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

20741, 1990-070G

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

Yuzhnoe

Mission

Spacecraft

Bus & Motor

S5M, Unknown motor

Mass

1,600 kg wet, 1,600 kg dry

Launch date (UTC)

1990-08-08 (36 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 1.4 m

Radar Cross Section

7.351 m², Large (>1 m²)

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

TLE from 1 day ago

0 SL-14 R/B
1 20741U 90070G   26215.77503088  .00000010  00000-0  98500-6 0  9993
2 20741  82.5746  40.2356 0035012 312.0367  58.4819 12.55718368649506

Epoch: 2026-08-03T18:36Z

TLE epoch observation values (Epoch: 2026-08-03T18:36:02.668Z)

Latitude

10.72232°

Longitude

170.27831°

Altitude

1,428.398 km

Speed

7.154 km/s

True Right ascension

02h 46m 34s

True Declination

10° 39' 54"

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

12:40:55

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,465.363 km

Perigee altitude

1,410.632 km

Semi-major axis

7,816.134 km

Eccentricity

0.0035

Inclination

82.5746°

RAAN

40.2356°

Arg. of periapsis

312.0367°

True anomaly

58.8247°

Mean anomaly

58.4819°

Eccentric anomaly

58.65322°

Mean motion

3.14091 °/min

Orbital period

114.62 mins

BSTAR

9.85e-7

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #70 in the year 1990 (1990-08-08 UTC)

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-14 R/B 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.
16 mins	2026-08-04 23:50:21.404Z	357.934° N	2026-08-04 23:58:21.404Z	94.488° ESE	43.007°	2026-08-05 00:06:21.404Z	163.322° S
10 mins	2026-08-05 01:48:21.404Z	317.074° NNW	2026-08-05 01:52:21.404Z	283.504° WNW	22.071°	2026-08-05 01:58:21.404Z	234.511° WSW
15 mins	2026-08-05 12:42:21.404Z	175.128° S	2026-08-05 12:49:21.404Z	98.369° ESE	43.812°	2026-08-05 12:57:21.404Z	11.743° NNE
10 mins	2026-08-05 14:41:21.404Z	254.864° W	2026-08-05 14:46:21.404Z	298.453° NW	21.317°	2026-08-05 14:51:21.404Z	338.362° N

Items per page:

1–4 of 4 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-14 R/B, 20741 on other resources

View SL-14 R/B, 20741 on Heavens-Above

View SL-14 R/B, 20741 on Keep Track

View SL-14 R/B, 20741 on Celestrak

View SL-14 R/B, 20741 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-14 R/B, 20741

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: 2026-08-03T18:36:02.668Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #70 in the year 1990 (1990-08-08 UTC)

SL-14 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out SL-14 R/B, 20741 on other resources

Documentation

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