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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ISO8601 Format

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

Cyl + 1 Nozzle, 3.1 m

Radar Cross Section

8.306 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 16 hours ago

TLE from 16 hours ago

0 THOR AGENA B R/B
1 00741U 64004B   25260.12925898  .00000026  00000-0  35104-4 0  9990
2 00741  81.4932  25.8925 0171857 201.5563 332.9038 13.23811540976933

Epoch: 2025-09-17T03:06Z

TLE epoch observation values (Epoch: 2025-09-17T03:06:07.975Z)

Latitude

6.30898°

Longitude

162.107°

Altitude

1,057.357 km

Speed

7.379 km/s

True Right ascension

13h 39m 47s

True Declination

6° 16' 23"

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

11:36:03

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,297.151 km

Perigee altitude

1,037.798 km

Semi-major axis

7,545.612 km

Eccentricity

0.01719

Inclination

81.4932°

RAAN

25.8925°

Arg. of periapsis

201.5563°

True anomaly

331.98936°

Mean anomaly

332.9038°

Eccentric anomaly

332.44834°

Mean motion

3.31132 °/min

Orbital period

108.72 mins

BSTAR

0.000035104

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

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

ECHO 2 DEB (METAL OBJ), 742

ECHO 2 DEB (METAL OBJ), 743

THOR AGENA B DEB, 749 (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.
11 mins	2025-09-17 19:08:43.084Z	11.754° NNE	2025-09-17 19:14:43.084Z	71.694° E	25.659°	2025-09-17 19:19:43.084Z	124.548° SE
11 mins	2025-09-17 20:59:43.084Z	333.442° NNW	2025-09-17 21:04:43.084Z	265.73° W	35.897°	2025-09-17 21:10:43.084Z	198.698° SSW
6 mins	2025-09-18 07:24:43.084Z	101.299° ESE	2025-09-18 07:27:43.084Z	76.172° E	14.731°	2025-09-18 07:30:43.084Z	52.082° ENE
13 mins	2025-09-18 09:09:43.084Z	185.152° SSW	2025-09-18 09:15:43.084Z	158.99° S	44.855°	2025-09-18 09:22:43.084Z	9.736° NNE
8 mins	2025-09-18 11:02:43.084Z	262.022° W	2025-09-18 11:06:43.084Z	295.967° NW	17.363°	2025-09-18 11:10:43.084Z	330.463° NNW

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: 16 hours ago

TLE from 16 hours ago

TLE epoch observation values (Epoch: 2025-09-17T03:06:07.975Z)

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: 16 hours ago