THOR AGENA B R/B, 741

Orbit data source: Space-Track

THOR AGENA B R/B, 741 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/741?theme=dark&initialShowStats=false

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Identifier

741, 1964-004B

Orbit

LEO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

LMSC

Mission

Spacecraft

Bus & Motor

AGENA B, Unknown motor

Mass

~705 kg wet, 705 kg dry

Launch date (UTC)

1964-01-25 (62 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

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Last TLE update: 7 hours ago

TLE from 7 hours ago

0 THOR AGENA B R/B
1 00741U 64004B   26070.91048528 -.00000014  00000-0 -55649-4 0  9998
2 00741  81.4869 242.2328 0172525 129.1037 343.2948 13.23825855   205

Epoch: 2026-03-11T21:51Z

TLE epoch observation values (Epoch: 2026-03-11T21:51:05.928Z)

Latitude

66.73827°

Longitude

-95.37741°

Altitude

1,057.073 km

Speed

7.39 km/s

True Right ascension

02h 47m 51s

True Declination

66° 37' 06"

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

09:01:58

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,297.6 km

Perigee altitude

1,037.241 km

Semi-major axis

7,545.557 km

Eccentricity

0.01725

Inclination

81.4869°

RAAN

242.2328°

Arg. of periapsis

129.1037°

True anomaly

342.71455°

Mean anomaly

343.2948°

Eccentric anomaly

343.00589°

Mean motion

3.31136 °/min

Orbital period

108.72 mins

BSTAR

-0.000055649

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

ECHO 2 DEB (METAL OBJ), 742

ECHO 2 DEB (METAL OBJ), 743

THOR AGENA B DEB, 749 (Decayed)

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

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THOR AGENA B 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.
13 mins	2026-03-12 11:54:02.795Z	177.136° S	2026-03-12 12:00:02.795Z	122.886° SE	43.19°	2026-03-12 12:07:02.795Z	13.761° NNE
8 mins	2026-03-12 13:47:02.795Z	256.551° W	2026-03-12 13:51:02.795Z	295.021° NW	18.693°	2026-03-12 13:55:02.795Z	333.335° NNW
5 mins	2026-03-12 21:30:02.795Z	41.321° NE	2026-03-12 21:32:02.795Z	61.574° ENE	14.975°	2026-03-12 21:35:02.795Z	91.621° ESE
11 mins	2026-03-12 23:18:02.795Z	347.321° N	2026-03-12 23:23:02.795Z	242.826° WSW	44.416°	2026-03-12 23:29:02.795Z	178.25° S

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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 THOR AGENA B R/B, 741 on other resources

View THOR AGENA B R/B, 741 on Heavens-Above

View THOR AGENA B R/B, 741 on Keep Track

View THOR AGENA B R/B, 741 on Celestrak

View THOR AGENA B R/B, 741 on Gunter's Space Page

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

THOR AGENA B R/B, 741

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-03-11T21:51:05.928Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

THOR AGENA B R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out THOR AGENA B R/B, 741 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago