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: 15 hours ago

TLE from 15 hours ago

0 THOR AGENA B R/B
1   741U 64004B   26187.96983874 -.00000011  00000-0 -47386-4 0  9990
2   741  81.4908 146.5874 0171182 200.7170 222.1522 13.23826120 15691

Epoch: 2026-07-06T23:16Z

TLE epoch observation values (Epoch: 2026-07-06T23:16:34.067Z)

Latitude

60.51904°

Longitude

-112.23428°

Altitude

1,277.189 km

Speed

7.176 km/s

True Right ascension

10h 47m 25s

True Declination

60° 22' 53"

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

02:29:49

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,296.586 km

Perigee altitude

1,038.253 km

Semi-major axis

7,545.556 km

Eccentricity

0.01712

Inclination

81.4908°

RAAN

146.5874°

Arg. of periapsis

200.717°

True anomaly

220.85644°

Mean anomaly

222.1522°

Eccentric anomaly

221.50227°

Mean motion

3.31136 °/min

Orbital period

108.72 mins

BSTAR

-0.000047386

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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.
12 mins	2026-07-07 20:50:01.233Z	139.515° SSE	2026-07-07 20:56:01.233Z	83.789° E	26.389°	2026-07-07 21:02:01.233Z	30.867° NE
13 mins	2026-07-07 22:39:01.233Z	211.213° SW	2026-07-07 22:45:01.233Z	277.881° WNW	38.795°	2026-07-07 22:52:01.233Z	358.226° N
10 mins	2026-07-08 08:14:01.233Z	13.624° NNE	2026-07-08 08:19:01.233Z	82.012° E	32.543°	2026-07-08 08:24:01.233Z	138.347° SSE
9 mins	2026-07-08 10:04:01.233Z	322.727° NNW	2026-07-08 10:08:01.233Z	275.351° WNW	28.187°	2026-07-08 10:13:01.233Z	216.981° SW

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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: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-07-06T23:16:34.067Z)

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: 15 hours ago