THOR ABLESTAR DEB, 559

Orbit data source: Space-Track

THOR ABLESTAR DEB, 559 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/559?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

559, 1961-015GR

Orbit

LEO

Last TLE update

6 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 6 hours ago

0 THOR ABLESTAR DEB
1   559U 61015GR  25201.17762267  .00006839  00000-0  12254-2 0  9992
2   559  66.5999 142.0011 0041602  34.8373 325.5453 14.66800341301447

Epoch: 2025-07-20T04:15Z

TLE epoch observation values (Epoch: 2025-07-20T04:15:46.598Z)

Latitude

-0.00004°

Longitude

139.85281°

Altitude

649.29 km

Speed

7.546 km/s

True Right ascension

09h 28m 00s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-49.60081°

Longitude

108.74155°

Altitude

689.775 km

Speed

7.511 km/s

Apparent Right ascension

09h 29m 31s

Apparent Declination

-49° 02' 35"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

23:26:42

Azimuth

123.515° SE

Elevation

-67.374°

Doppler factor

Orbital elements

Apogee altitude

698.98 km

Perigee altitude

640.34 km

Semi-major axis

7,047.797 km

Eccentricity

0.00416

Inclination

66.5999°

RAAN

142.0011°

Arg. of periapsis

34.8373°

True anomaly

325.27443°

Mean anomaly

325.5453°

Eccentric anomaly

325.40998°

Mean motion

3.66829 °/min

Orbital period

98.14 mins

BSTAR

0.0012254

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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.
6 mins	2025-07-20 20:45:19.761Z	154.689° SSE	2025-07-20 20:48:19.761Z	108.764° ESE	20.577°	2025-07-20 20:51:19.761Z	62.97° ENE
6 mins	2025-07-20 22:26:19.761Z	249.182° W	2025-07-20 22:29:19.761Z	319.261° NNW	30.976°	2025-07-20 22:32:19.761Z	9.157° NNE
8 mins	2025-07-21 07:00:19.761Z	325.176° NNW	2025-07-21 07:03:19.761Z	286.903° WNW	42.82°	2025-07-21 07:08:19.761Z	159.175° S

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, 559 on other resources

View THOR ABLESTAR DEB, 559 on Heavens-Above

View THOR ABLESTAR DEB, 559 on Keep Track

View THOR ABLESTAR DEB, 559 on Celestrak

View THOR ABLESTAR DEB, 559 on Gunter's Space Page

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