DELTA 4 R/B, 40535

Orbit data source: Space-Track

DELTA 4 R/B, 40535 is space debris in MEO originally from a launch on Wed, 25 Mar 2015 UTC launched from the Air Force Eastern Test Range (AFETR). 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/40535?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

40535, 2015-013B

Orbit

MEO

Country

Related business

United Launch Alliance/Lockheed Martin (US)

Manufacturer

ULA Decatur

Mission

Spacecraft

Bus & Motor

DCSS-4, RL10B-2

Mass

2,850 kg wet, 2,850 kg dry

Launch date (UTC)

2015-03-25 (11 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 1 Nozzle, 6.0 m

Radar Cross Section

43.982 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 4 R/B
1 40535U 15013B   26207.34842753  .00000077  00000-0  00000-0 0  9994
2 40535  52.6359 214.6330 0032925  67.5992 292.7856  1.92974809 79911

Epoch: 2026-07-26T08:21Z

TLE epoch observation values (Epoch: 2026-07-26T08:21:44.138Z)

Latitude

0.00001°

Longitude

145.16112°

Altitude

20,839.775 km

Speed

3.829 km/s

True Right ascension

14h 18m 34s

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

14:18:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

20,963.884 km

Perigee altitude

20,784.428 km

Semi-major axis

27,252.293 km

Eccentricity

0.00329

Inclination

52.6359°

RAAN

214.633°

Arg. of periapsis

67.5992°

True anomaly

292.4372°

Mean anomaly

292.7856°

Eccentric anomaly

292.61145°

Mean motion

0.48243 °/min

Orbital period

746.21 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #13 in the year 2015 (2015-03-25 UTC)

DELTA 4 DEB, 40599 (Decayed)

DELTA 4 DEB, 40597 (Decayed)

NAVSTAR 73 (USA 260), 40534

DELTA 4 DEB, 40598 (Decayed)

DELTA 4 DEB, 40649

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DELTA 4 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.
8 mins	2026-07-28 00:56:03.861Z	42.375° NE	2026-07-28 00:56:03.861Z	42.375° NE	12.631°	2026-07-28 01:04:03.861Z	41.341° NE
220 mins	2026-07-28 12:58:03.861Z	318.854° NNW	2026-07-28 14:43:03.861Z	283.4° WNW	27.853°	2026-07-28 16:38:03.861Z	236.326° WSW
193 mins	2026-07-28 21:43:03.861Z	146.416° SSE	2026-07-29 00:03:03.861Z	87.229° E	35.865°	2026-07-29 00:56:03.861Z	58.79° ENE

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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 DELTA 4 R/B, 40535 on other resources

View DELTA 4 R/B, 40535 on Heavens-Above

View DELTA 4 R/B, 40535 on Keep Track

View DELTA 4 R/B, 40535 on Celestrak

View DELTA 4 R/B, 40535 on Gunter's Space Page

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

DELTA 4 R/B, 40535

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-07-26T08:21:44.138Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #13 in the year 2015 (2015-03-25 UTC)

DELTA 4 R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 4 R/B, 40535 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago