BLOCK DM-SL R/B, 28138

Orbit data source: Space-Track

BLOCK DM-SL R/B, 28138 is space debris in HEO originally from a launch on Sun, 11 Jan 2004 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/28138?theme=dark&initialShowStats=false

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Identifier

28138, 2004-001B

Orbit

HEO

Country

US / SEAL

Related business

S7 Space (RU)

Manufacturer

RKKE

Mission

Spacecraft

Bus & Motor

BLOK DM2, 11D58M

Mass

~3,210 kg wet, 3,210 kg dry

Launch date (UTC)

2004-01-11 (22 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 day ago

TLE from 1 day ago

0 BLOCK DM-SL R/B
1 28138U 04001B   26093.85336377 -.00000089  00000-0  36109-3 0  9999
2 28138   0.8469  16.1962 7139045 312.2463   4.0339  2.24741828182543

Epoch: 2026-04-03T20:28Z

TLE epoch observation values (Epoch: 2026-04-03T20:28:50.629Z)

Latitude

-0.24412°

Longitude

-139.39154°

Altitude

1,125.876 km

Speed

9.489 km/s

True Right ascension

00h 00m 00s

True Declination

0° 14' 34"

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

03:18:01

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,826.289 km

Perigee altitude

666.886 km

Semi-major axis

24,624.725 km

Eccentricity

0.7139

Inclination

0.8469°

RAAN

16.1962°

Arg. of periapsis

312.2463°

True anomaly

32.92909°

Mean anomaly

4.0339°

Eccentric anomaly

13.77001°

Mean motion

0.56168 °/min

Orbital period

640.94 mins

BSTAR

0.00036109

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Other satellites on launch #1 in the year 2004 (2004-01-11 UTC)

ESTRELA DU SOL-TELSTAR14, 28137

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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.
126 mins	2026-04-05 00:31:40.052Z	106.244° ESE	2026-04-05 01:45:40.052Z	110.677° ESE	12.592°	2026-04-05 02:37:40.052Z	110.909° ESE

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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, 28138 on other resources

View BLOCK DM-SL R/B, 28138 on Heavens-Above

View BLOCK DM-SL R/B, 28138 on Keep Track

View BLOCK DM-SL R/B, 28138 on Celestrak

View BLOCK DM-SL R/B, 28138 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, 28138

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: 2026-04-03T20:28:50.629Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #1 in the year 2004 (2004-01-11 UTC)

BLOCK DM-SL R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out BLOCK DM-SL R/B, 28138 on other resources

Documentation

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