DELTA 4 R/B, 39742

Orbit data source: Space-Track

DELTA 4 R/B, 39742 is space debris in MEO originally from a launch on Sat, 17 May 2014 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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Iframe URL

https://www.satcat.com/sats-embedded/39742?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

39742, 2014-026B

Orbit

MEO

Last TLE update

4 days ago

Origin

United Launch Alliance/Lockheed Martin (US)

Manufacturer

ULA Decatur

Mission

2))"

Bus & Motor

DCSS-4, RL10B-2

Mass

2,850 kg wet, 2,850 kg dry

Launch date (UTC)

2014-05-17 (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, Unknown HBR

Radar Cross Section

43.982 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 4 days ago

0 DELTA 4 R/B
1 39742U 14026B   25181.59101100 -.00000104  00000-0  00000-0 0  9998
2 39742  56.7137 355.6481 0014694 121.0828 239.0708  1.93899091 76252

Epoch: 2025-06-30T14:11Z

TLE epoch observation values (Epoch: 2025-06-30T14:11:03.35Z)

Latitude

0.00001°

Longitude

-136.02203°

Altitude

20,808.252 km

Speed

3.828 km/s

True Right ascension

23h 42m 33s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

12.55678°

Longitude

35.42202°

Altitude

20,758.195 km

Speed

3.835 km/s

Apparent Right ascension

11h 13m 48s

Apparent Declination

4° 48' 38"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

10:44:07

Azimuth

167.265° S

Elevation

54.261°

Doppler factor

Orbital elements

Apogee altitude

20,827.237 km

Perigee altitude

20,747.403 km

Semi-major axis

27,165.457 km

Eccentricity

0.00147

Inclination

56.7137°

RAAN

355.6481°

Arg. of periapsis

121.0828°

True anomaly

Unknown

Mean anomaly

239.0708°

Eccentric anomaly

Unknown

Mean motion

0.48475 °/min

Orbital period

742.65 mins

BSTAR

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Other satellites on launch #26 in the year 2014 (2014-05-17 UTC)

NAVSTAR 70 (USA 251), 39741

DELTA 4 DEB, 39754 (Decayed)

DELTA 4 DEB, 39755 (Decayed)

DELTA 4 DEB, 39756 (Decayed)

DELTA 4 DEB, 39757 (Decayed)

DELTA 4 DEB, 39758 (Decayed)

DELTA 4 DEB, 39759 (Decayed)

DELTA 4 DEB, 39760 (Decayed)

DELTA 4 DEB, 40003 (Decayed)

DELTA 4 DEB, 40004 (Decayed)

DELTA 4 DEB, 40005 (Decayed)

DELTA 4 DEB, 40006 (Decayed)

DELTA 4 DEB, 40007 (Decayed)

DELTA 4 DEB, 40008 (Decayed)

DELTA 4 R/B Visibility forecast

Observer location: undefined°, undefined°

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.
96 mins	2025-07-04 22:51:48.056Z	167.275° S	2025-07-04 22:51:48.056Z	167.275° S	39.056°	2025-07-05 00:27:48.056Z	171.158° S
202 mins	2025-07-05 19:29:48.056Z	297.91° NW	2025-07-05 22:33:48.056Z	254.861° W	44.321°	2025-07-05 22:51:48.056Z	220.352° SW

Authenticating...

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Check out DELTA 4 R/B, 39742 on other resources

View DELTA 4 R/B, 39742 on Heavens-Above

View DELTA 4 R/B, 39742 on Keep Track

View DELTA 4 R/B, 39742 on Celestrak

View DELTA 4 R/B, 39742 on Gunter's Space Page

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