ECHO 2 DEB (METAL OBJ), 743

Orbit data source: Space-Track

ECHO 2 DEB (METAL OBJ), 743 is space debris in LEO originally from a launch on Sat, 25 Jan 1964 UTC launched from the Air Force Western Test Range (AFWTR). 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/743?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

743, 1964-004D

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Grummann

Mission

Spacecraft

Bus & Motor

ECHO CANISTER, Unknown motor

Mass

35 kg wet, 35 kg dry

Launch date (UTC)

1964-01-25 (63 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

DOME, 0.9 m

Radar Cross Section

Large (>1 m²)

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Last TLE update: 4 hours ago

TLE from 4 hours ago

0 ECHO 2 DEB (METAL OBJ)
1 00743U 64004D   26305.27481950  .00000072  00000-0  12669-3 0  9996
2 00743  81.5230  52.9731 0173742  15.9303  11.9965 13.26900328 36304

Epoch: 2026-11-01T06:35Z

TLE epoch observation values (Epoch: 2026-11-01T06:35:44.404Z)

Latitude

28.0552°

Longitude

-81.99828°

Altitude

1,033.826 km

Speed

7.399 km/s

True Right ascension

03h 50m 01s

True Declination

27° 55' 05"

Sunlit

Object was in full shadow 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

06:26:20

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,286.646 km

Perigee altitude

1,024.855 km

Semi-major axis

7,533.887 km

Eccentricity

0.01737

Inclination

81.523°

RAAN

52.9731°

Arg. of periapsis

15.9303°

True anomaly

12.41929°

Mean anomaly

11.9965°

Eccentric anomaly

12.20699°

Mean motion

3.31906 °/min

Orbital period

108.46 mins

BSTAR

0.00012669

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Other satellites on launch #4 in the year 1964 (1964-01-25 UTC)

ECHO 2 (A-12), 740 (Decayed)

THOR AGENA B DEB, 749 (Decayed)

THOR AGENA B R/B, 741

ECHO 2 DEB (METAL OBJ), 742

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ECHO 2 DEB (METAL OBJ) 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.
11 mins	2026-11-01 17:53:52.042Z	16.738° NNE	2026-11-01 17:58:52.042Z	64.024° ENE	27.429°	2026-11-01 18:04:52.042Z	122.057° SE
12 mins	2026-11-01 19:43:52.042Z	337.775° N	2026-11-01 19:48:52.042Z	276.423° WNW	55.99°	2026-11-01 19:55:52.042Z	193.093° SSW
12 mins	2026-11-02 07:53:52.042Z	178.589° S	2026-11-02 07:58:52.042Z	127.027° SE	72.111°	2026-11-02 08:05:52.042Z	12.557° NNE
6 mins	2026-11-02 09:46:52.042Z	267.765° W	2026-11-02 09:49:52.042Z	298.888° NW	16.869°	2026-11-02 09:52:52.042Z	328.234° NNW

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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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Check out ECHO 2 DEB (METAL OBJ), 743 on other resources

View ECHO 2 DEB (METAL OBJ), 743 on Heavens-Above

View ECHO 2 DEB (METAL OBJ), 743 on Keep Track

View ECHO 2 DEB (METAL OBJ), 743 on Celestrak

View ECHO 2 DEB (METAL OBJ), 743 on Gunter's Space Page

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

ECHO 2 DEB (METAL OBJ), 743

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 4 hours ago

TLE from 4 hours ago

TLE epoch observation values (Epoch: 2026-11-01T06:35:44.404Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #4 in the year 1964 (1964-01-25 UTC)

ECHO 2 DEB (METAL OBJ) Visibility forecast

Co-orbital & Co-planar RSOs

Check out ECHO 2 DEB (METAL OBJ), 743 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 4 hours ago