BLOCK DM-SL R/B, 28900

Orbit data source: Space-Track

BLOCK DM-SL R/B, 28900 is space debris in HEO originally from a launch on Tue, 08 Nov 2005 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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https://www.satcat.com/sats-embedded/28900?theme=dark&initialShowStats=false

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Identifier

28900, 2005-044B

Orbit

HEO

Country

US / SEAL

Related business

S7 Space (RU)

Manufacturer

RKKE

Mission

Spacecraft

Bus & Motor

BLOK DM2, 11D58M

Mass

~3,070 kg wet, ~3,070 kg dry

Launch date (UTC)

2005-11-08 (21 years ago)

Launch vehicle

Unknown

Launch site

Sea Launch (SEAL)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 3.1 m

Radar Cross Section

23.684 m², Large (>1 m²)

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Last TLE update: 1 week ago

TLE from 1 week ago

0 BLOCK DM-SL R/B
1 28900U 05044B   26154.95258943  .00001323  00000-0  71805-3 0  9998
2 28900   2.8515 107.9218 6945066  45.4327 353.3739  2.69097946184201

Epoch: 2026-06-03T22:51Z

TLE epoch observation values (Epoch: 2026-06-03T22:51:43.726Z)

Latitude

0.00001°

Longitude

-127.9745°

Altitude

1,262.48 km

Speed

9.277 km/s

True Right ascension

07h 09m 26s

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

14:21:55

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

30,628.457 km

Perigee altitude

293.581 km

Semi-major axis

21,839.156 km

Eccentricity

0.69451

Inclination

2.8515°

RAAN

107.9218°

Arg. of periapsis

45.4327°

True anomaly

313.50094°

Mean anomaly

353.3739°

Eccentric anomaly

339.32376°

Mean motion

0.6725 °/min

Orbital period

535.32 mins

BSTAR

0.00071805

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Other satellites on launch #44 in the year 2005 (2005-11-08 UTC)

INMARSAT 4-F2, 28899

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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.
474 mins	2026-06-11 10:02:20.027Z	233.329° WSW	2026-06-11 12:10:20.027Z	206.752° SW	30.579°	2026-06-11 17:56:20.027Z	164.461° S

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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 BLOCK DM-SL R/B, 28900 on other resources

View BLOCK DM-SL R/B, 28900 on Heavens-Above

View BLOCK DM-SL R/B, 28900 on Keep Track

View BLOCK DM-SL R/B, 28900 on Celestrak

View BLOCK DM-SL R/B, 28900 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

BLOCK DM-SL R/B, 28900

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 week ago

TLE from 1 week ago

TLE epoch observation values (Epoch: 2026-06-03T22:51:43.726Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #44 in the year 2005 (2005-11-08 UTC)

BLOCK DM-SL R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out BLOCK DM-SL R/B, 28900 on other resources

Documentation

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