ATLAS AGENA D R/B, 2144

Orbit data source: Space-Track

ATLAS AGENA D R/B, 2144 is space debris in LEO originally from a launch on Fri, 08 Apr 1966 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/2144?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

2144, 1966-031B

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

LMSC

Mission

Spacecraft

Bus & Motor

AGENA D, Unknown motor

Mass

769 kg wet, 769 kg dry

Launch date (UTC)

1966-04-08 (60 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

CYL, 3.1 m

Radar Cross Section

Large (>1 m²)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 ATLAS AGENA D R/B
1 02144U 66031B   26208.83381260  .00000317  00000-0  95267-4 0  9990
2 02144  35.0413 113.8421 0008062 334.5004  25.5288 14.44975117168653

Epoch: 2026-07-27T20:00Z

TLE epoch observation values (Epoch: 2026-07-27T20:00:41.408Z)

Latitude

-0.00004°

Longitude

-131.84221°

Altitude

735.879 km

Speed

7.492 km/s

True Right ascension

07h 35m 22s

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

11:20:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

750.983 km

Perigee altitude

739.497 km

Semi-major axis

7,123.377 km

Eccentricity

0.00081

Inclination

35.0413°

RAAN

113.8421°

Arg. of periapsis

334.5004°

True anomaly

25.56865°

Mean anomaly

25.5288°

Eccentric anomaly

25.54872°

Mean motion

3.61006 °/min

Orbital period

99.72 mins

BSTAR

0.000095267

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Other satellites on launch #31 in the year 1966 (1966-04-08 UTC)

ATLAS AGENA D DEB, 2145 (Decayed)

OAO 1, 2142

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ATLAS AGENA D 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.
9 mins	2026-07-28 22:50:35.967Z	242.488° WSW	2026-07-28 22:54:35.967Z	185.553° SSW	35.644°	2026-07-28 22:59:35.967Z	101.485° ESE
8 mins	2026-07-29 00:36:35.967Z	253.685° W	2026-07-29 00:40:35.967Z	172.677° S	34.923°	2026-07-29 00:44:35.967Z	118.983° SE
6 mins	2026-07-29 02:22:35.967Z	241.432° WSW	2026-07-29 02:24:35.967Z	212.296° SW	21.876°	2026-07-29 02:28:35.967Z	156.271° SSE
6 mins	2026-07-29 20:19:35.967Z	187.479° SSW	2026-07-29 20:21:35.967Z	159.4° S	19.541°	2026-07-29 20:25:35.967Z	107.983° 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 ATLAS AGENA D R/B, 2144 on other resources

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View ATLAS AGENA D R/B, 2144 on Gunter's Space Page

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ATLAS AGENA D R/B, 2144

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: 2026-07-27T20:00:41.408Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #31 in the year 1966 (1966-04-08 UTC)

ATLAS AGENA D R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out ATLAS AGENA D R/B, 2144 on other resources

Documentation

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