THOR ABLESTAR DEB, 561

Orbit data source: Space-Track

THOR ABLESTAR DEB, 561 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/561?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

561, 1961-015GT

Orbit

LEO

Last TLE update

11 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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history

TLE from 11 hours ago

0 THOR ABLESTAR DEB
1   561U 61015GT  25199.21763596  .00000217  00000-0  97410-3 0  9994
2   561  67.7505 220.0217 0627122 166.6336 284.1471 12.41221919900119

Epoch: 2025-07-18T05:13Z

TLE epoch observation values (Epoch: 2025-07-18T05:13:23.746Z)

Latitude

67.01808°

Longitude

-80.88879°

Altitude

1,421.25 km

Speed

7.198 km/s

True Right ascension

19h 34m 55s

True Declination

66° 54' 17"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

50.52353°

Longitude

-125.84022°

Altitude

1,649.157 km

Speed

6.99 km/s

Apparent Right ascension

17h 00m 36s

Apparent Declination

11° 56' 04"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

05:27:12

Azimuth

8.242° NNE

Elevation

-37.783°

Doppler factor

Orbital elements

Apogee altitude

1,993.875 km

Perigee altitude

1,005.786 km

Semi-major axis

7,877.968 km

Eccentricity

0.06271

Inclination

67.7505°

RAAN

220.0217°

Arg. of periapsis

166.6336°

True anomaly

277.0609°

Mean anomaly

284.1471°

Eccentric anomaly

280.61545°

Mean motion

3.104 °/min

Orbital period

115.98 mins

BSTAR

0.0009741

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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.
19 mins	2025-07-19 02:04:42.880Z	181.822° SSW	2025-07-19 02:15:42.880Z	102.298° ESE	38.787°	2025-07-19 02:23:42.880Z	38.318° NE
16 mins	2025-07-19 04:06:42.880Z	241.041° WSW	2025-07-19 04:14:42.880Z	301.902° NW	35.18°	2025-07-19 04:22:42.880Z	14.887° NNE
6 mins	2025-07-19 06:14:42.880Z	314.971° NW	2025-07-19 06:16:42.880Z	328.35° NNW	13.162°	2025-07-19 06:20:42.880Z	356.513° N
8 mins	2025-07-19 10:21:42.880Z	3.713° NNE	2025-07-19 10:25:42.880Z	42.869° NE	18.716°	2025-07-19 10:29:42.880Z	81.74° E
12 mins	2025-07-19 12:19:42.880Z	330.853° NNW	2025-07-19 12:25:42.880Z	251.326° W	44.866°	2025-07-19 12:31:42.880Z	156.988° SSE

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, 561 on other resources

View THOR ABLESTAR DEB, 561 on Heavens-Above

View THOR ABLESTAR DEB, 561 on Keep Track

View THOR ABLESTAR DEB, 561 on Celestrak

View THOR ABLESTAR DEB, 561 on Gunter's Space Page

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