SL-4 R/B, 68320
Orbit data source: Space-Track
SL-4 R/B, 68320 is space debris in LEO originally from a launch on Sun, 22 Mar 2026 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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Identifier
Orbit
Country
CISRelated business
Manufacturer
TsSKB-Progress
Mission
Spacecraft
Bus & Motor
BLOK-I, RD-0980
Mass
~2,350 kg wet, 2,350 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
RCS unknown
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 SL-4 R/B
1 68320U 26058B 26083.14431863 .10751138 12561-4 27517-3 0 9999
2 68320 51.6482 0.7405 0007315 84.8434 275.3430 16.45417185 275Epoch: 2026-03-24T03:27Z
TLE epoch observation values (Epoch: 2026-03-24T03:27:49.129Z)
Latitude
-0.00002°
Longitude
127.15959°
Altitude
151.763 km
Speed
7.817 km/s
True Right ascension
00h 02m 57s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
01:25:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
156.735 km
Perigee altitude
147.182 km
Semi-major axis
6,530.095 km
Eccentricity
0.00073
Inclination
51.6482°
RAAN
0.7405°
Arg. of periapsis
84.8434°
True anomaly
275.25953°
Mean anomaly
275.343°
Eccentric anomaly
275.30127°
Mean motion
4.11305 °/min
Orbital period
87.53 mins
BSTAR
0.00027517
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Other satellites on launch #58 in the year 2026 (2026-03-22 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.SL-4 R/B Visibility
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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. |
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| SL-4 R/B is likely not visible in the next few days. |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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