BLOCK DM-SL R/B, 27855
Orbit data source: Space-Track
BLOCK DM-SL R/B, 27855 is space debris in HEO originally from a launch on Fri, 08 Aug 2003 UTC launched from the Sea Launch (SEAL). 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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27855 intel report (Beta)
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Identifier
Orbit
Country
US / SEALRelated business
Manufacturer
RKKE
Mission
Spacecraft
Bus & Motor
BLOK DM2, 11D58M
Mass
~3,210 kg wet, 3,210 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl, 3.2 m
Radar Cross Section
23.684 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 BLOCK DM-SL R/B
1 27855U 03034B 26252.32760694 .00000097 00000-0 17307-2 0 9997
2 27855 0.8310 324.1863 7143093 305.8292 15.6630 2.24674488189604Epoch: 2026-09-09T07:51Z
TLE epoch observation values (Epoch: 2026-09-09T07:51:45.239Z)
Latitude
0.44903°
Longitude
-107.13544°
Altitude
5,582.405 km
Speed
7.103 km/s
True Right ascension
23h 56m 44s
True Declination
0° 26' 51"
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
08:41:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,844.704 km
Perigee altitude
658.326 km
Semi-major axis
24,629.652 km
Eccentricity
0.71431
Inclination
0.831°
RAAN
324.1863°
Arg. of periapsis
305.8292°
True anomaly
89.68221°
Mean anomaly
15.663°
Eccentric anomaly
44.19142°
Mean motion
0.56151 °/min
Orbital period
641.13 mins
BSTAR
0.0017307
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Other satellites on launch #34 in the year 2003 (2003-08-08 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.BLOCK DM-SL 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. |
|---|---|---|---|---|---|---|---|
| 68 mins | 2026-09-09 16:27:01.112Z | 179.267° S | 2026-09-09 16:27:01.112Z | 179.267° S | 39.585° | 2026-09-09 17:35:01.112Z | 138.193° SSE |
| 361 mins | 2026-09-10 08:30:01.112Z | 105.929° ESE | 2026-09-10 12:47:01.112Z | 128.08° SE | 27.47° | 2026-09-10 14:31:01.112Z | 119.025° SE |
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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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 |
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