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

Unknown

Radar Cross Section

Large (>1 m²)

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Last TLE update: 9 hours ago

TLE from 9 hours ago

0 THOR AGENA B R/B
1   741U 64004B   25295.17358756  .00000039  00000-0  57299-4 0  9999
2   741  81.4940 357.2648 0172982 115.5529 304.3863 13.23815060981578

Epoch: 2025-10-22T04:09Z

TLE epoch observation values (Epoch: 2025-10-22T04:09:57.965Z)

Latitude

57.3732°

Longitude

-82.63821°

Altitude

1,107.561 km

Speed

7.339 km/s

True Right ascension

00h 42m 49s

True Declination

57° 13' 27"

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

08:40:51

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,297.986 km

Perigee altitude

1,036.936 km

Semi-major axis

7,545.598 km

Eccentricity

0.0173

Inclination

81.494°

RAAN

357.2648°

Arg. of periapsis

115.5529°

True anomaly

302.73049°

Mean anomaly

304.3863°

Eccentric anomaly

303.5604°

Mean motion

3.31133 °/min

Orbital period

108.72 mins

BSTAR

0.000057299

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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.
12 mins	2025-10-22 15:20:22.677Z	6.411° NNE	2025-10-22 15:26:22.677Z	77.583° E	32.723°	2025-10-22 15:32:22.677Z	142.818° SSE
10 mins	2025-10-22 17:11:22.677Z	323.937° NNW	2025-10-22 17:15:22.677Z	278.771° WNW	26.595°	2025-10-22 17:21:22.677Z	213.715° SW
7 mins	2025-10-23 03:36:22.677Z	114.738° SE	2025-10-23 03:39:22.677Z	83.915° E	19.134°	2025-10-23 03:43:22.677Z	44.938° NE
11 mins	2025-10-23 05:23:22.677Z	203.474° SW	2025-10-23 05:28:22.677Z	275.244° WNW	42.116°	2025-10-23 05:34:22.677Z	1.303° NNE

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: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2025-10-22T04:09:57.965Z)

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: 9 hours ago