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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ISO8601 Format

Identifier

28138, 2004-001B

Orbit

HEO

Last TLE update

9 hours ago

Origin

S7 Space (Unknown / SEAL)

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)

Expand to show TLE details & history

TLE from 9 hours ago

0 BLOCK DM-SL R/B
1 28138U 04001B   25224.39042219 -.00000062  00000-0 -11132-2 0  9992
2 28138   0.5344  32.0884 7143960 209.3334  30.9548  2.24731362177261

Epoch: 2025-08-12T09:22Z

TLE epoch observation values (Epoch: 2025-08-12T09:22:12.477Z)

Latitude

-0.31211°

Longitude

-101.6345°

Altitude

11,966.647 km

Speed

5.221 km/s

True Right ascension

00h 00m 00s

True Declination

0° 18' 41"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

0.5562°

Longitude

16.56266°

Altitude

13,523.01 km

Speed

4.885 km/s

Apparent Right ascension

07h 40m 28s

Apparent Declination

-14° 24' 44"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

08:30:53

Azimuth

194.843° SSW

Elevation

34.419°

Doppler factor

Orbital elements

Apogee altitude

35,839.723 km

Perigee altitude

655.005 km

Semi-major axis

24,625.501 km

Eccentricity

0.7144

Inclination

0.5344°

RAAN

32.0884°

Arg. of periapsis

209.3334°

True anomaly

118.80192°

Mean anomaly

30.9548°

Eccentric anomaly

69.22541°

Mean motion

0.56165 °/min

Orbital period

640.97 mins

BSTAR

-0.0011132

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

ESTRELA DU SOL-TELSTAR14, 28137

BLOCK DM-SL R/B Visibility forecast

Observer location: undefined°, undefined°
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.
39 mins	2025-08-12 18:05:35.587Z	194.831° SSW	2025-08-12 18:05:35.587Z	194.831° SSW	29.455°	2025-08-12 18:44:35.587Z	146.437° SSE
580 mins	2025-08-13 06:09:35.587Z	167.066° S	2025-08-13 13:44:35.587Z	147.221° SSE	31.206°	2025-08-13 15:49:35.587Z	125.18° SE

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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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

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