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 (63 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

CYL, 3.1 m

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 THOR AGENA B R/B
1 00741U 64004B   26252.30915891  .00000079  00000-0  14739-3 0  9992
2 00741  81.4865  94.0133 0172495  42.8867 128.6957 13.23829920 24204

Epoch: 2026-09-09T07:25Z

TLE epoch observation values (Epoch: 2026-09-09T07:25:11.329Z)

Latitude

6.74805°

Longitude

173.34324°

Altitude

1,255.058 km

Speed

7.188 km/s

True Right ascension

18h 12m 00s

True Declination

6° 42' 38"

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

07:20:57

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,297.562 km

Perigee altitude

1,037.248 km

Semi-major axis

7,545.542 km

Eccentricity

0.01725

Inclination

81.4865°

RAAN

94.0133°

Arg. of periapsis

42.8867°

True anomaly

130.21772°

Mean anomaly

128.6957°

Eccentric anomaly

129.45877°

Mean motion

3.31137 °/min

Orbital period

108.72 mins

BSTAR

0.00014739

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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.
9 mins	2026-09-09 15:46:43.239Z	247.156° WSW	2026-09-09 15:50:43.239Z	289.667° WNW	22.602°	2026-09-09 15:55:43.239Z	341.127° N
5 mins	2026-09-09 23:30:43.239Z	47.612° ENE	2026-09-09 23:32:43.239Z	65.718° ENE	14.088°	2026-09-09 23:35:43.239Z	90.822° ESE
13 mins	2026-09-10 01:17:43.239Z	353.652° N	2026-09-10 01:22:43.239Z	26.16° NE	77.929°	2026-09-10 01:30:43.239Z	169.873° S
6 mins	2026-09-10 03:09:43.239Z	300.219° NW	2026-09-10 03:11:43.239Z	281.885° WNW	16.118°	2026-09-10 03:15:43.239Z	247.003° WSW
10 mins	2026-09-10 13:30:43.239Z	151.388° SSE	2026-09-10 13:35:43.239Z	84.723° E	39.288°	2026-09-10 13:40:43.239Z	27.014° NE

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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 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: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-09-09T07:25:11.329Z)

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: 8 hours ago