THOR ABLESTAR DEB, 243

Orbit data source: Space-Track

THOR ABLESTAR DEB, 243 is space debris in LEO originally from a launch on Thu, 29 Jun 1961 UTC launched from the Air Force Eastern Test Range (AFETR). 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/243?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

243, 1961-015BY

Orbit

LEO

Last TLE update

15 hours ago

Origin

United States Space Force (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1961-06-29 (64 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history

TLE from 15 hours ago

0 THOR ABLESTAR DEB
1   243U 61015BY  25221.70529416  .00000698  00000-0  51504-3 0  9999
2   243  66.4621  68.7907 0035034 283.4982  76.2196 14.01239654240231

Epoch: 2025-08-09T16:55Z

TLE epoch observation values (Epoch: 2025-08-09T16:55:37.415Z)

Latitude

-0.00007°

Longitude

-143.55239°

Altitude

885.585 km

Speed

7.413 km/s

True Right ascension

04h 35m 09s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-40.61647°

Longitude

56.71233°

Altitude

890.659 km

Speed

7.413 km/s

Apparent Right ascension

14h 20m 38s

Apparent Declination

-59° 00' 40"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

21:57:58

Azimuth

221.98° SW

Elevation

-45.462°

Doppler factor

Orbital elements

Apogee altitude

913.386 km

Perigee altitude

862.474 km

Semi-major axis

7,266.067 km

Eccentricity

0.0035

Inclination

66.4621°

RAAN

68.7907°

Arg. of periapsis

283.4982°

True anomaly

76.60991°

Mean anomaly

76.2196°

Eccentric anomaly

76.41471°

Mean motion

3.50424 °/min

Orbital period

102.73 mins

BSTAR

0.00051504

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Other satellites on launch #15 in the year 1961 (1961-06-29 UTC)

TRANSIT 4A, 116

THOR ABLESTAR DEB, 140 (Decayed)

THOR ABLESTAR DEB, 141

THOR ABLESTAR DEB, 142 (Decayed)

THOR ABLESTAR DEB, 143 (Decayed)

THOR ABLESTAR DEB, 144

THOR ABLESTAR DEB, 145

THOR ABLESTAR DEB, 146 (Decayed)

THOR ABLESTAR DEB, 147

THOR ABLESTAR DEB, 148

THOR ABLESTAR DEB, 149 (Decayed)

THOR ABLESTAR DEB, 150

THOR ABLESTAR DEB, 151 (Decayed)

THOR ABLESTAR DEB, 152

THOR ABLESTAR DEB, 153 (Decayed)

THOR ABLESTAR DEB Visibility forecast

Observer location: undefined°, undefined°

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	2025-08-10 15:18:15.801Z	201.664° SSW	2025-08-10 15:24:15.801Z	104.711° ESE	44.222°	2025-08-10 15:29:15.801Z	33.075° NE
7 mins	2025-08-10 17:07:15.801Z	278.259° WNW	2025-08-10 17:10:15.801Z	313.395° NW	19.391°	2025-08-10 17:14:15.801Z	359.256° N
5 mins	2025-08-10 22:35:15.801Z	15.743° NNE	2025-08-10 22:37:15.801Z	37.42° NE	14.605°	2025-08-10 22:40:15.801Z	68.879° E
10 mins	2025-08-11 00:19:15.801Z	335.919° NNW	2025-08-11 00:24:15.801Z	71.136° E	43.535°	2025-08-11 00:29:15.801Z	142.612° SSE
5 mins	2025-08-11 02:07:15.801Z	277.506° WNW	2025-08-11 02:09:15.801Z	254.071° W	16.487°	2025-08-11 02:12:15.801Z	221.664° SW

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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Authenticating...

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Check out THOR ABLESTAR DEB, 243 on other resources

View THOR ABLESTAR DEB, 243 on Heavens-Above

View THOR ABLESTAR DEB, 243 on Keep Track

View THOR ABLESTAR DEB, 243 on Celestrak

View THOR ABLESTAR DEB, 243 on Gunter's Space Page

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