THOR ABLESTAR DEB, 1521

Orbit data source: Space-Track

THOR ABLESTAR DEB, 1521 is space debris in LEO originally from a launch on Fri, 13 Aug 1965 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/1521?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/1521?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

1521, 1965-065K

Orbit

LEO

Country

Related business

United States Navy (US)

Manufacturer

NRL

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1965-08-13 (61 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 20 hours ago

TLE from 20 hours ago

0 THOR ABLESTAR DEB
1 01521U 65065K   26207.51091073  .00000041  00000-0  64324-4 0  9992
2 01521  90.0202 210.3928 0070425 151.2340   3.1622 13.33285968964644

Epoch: 2026-07-26T12:15Z

TLE epoch observation values (Epoch: 2026-07-26T12:15:42.687Z)

Latitude

25.5877°

Longitude

-97.73323°

Altitude

1,084.696 km

Speed

7.338 km/s

True Right ascension

02h 01m 36s

True Declination

25° 27' 35"

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

21:11:00

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,184.355 km

Perigee altitude

1,078.582 km

Semi-major axis

7,509.605 km

Eccentricity

0.00704

Inclination

90.0202°

RAAN

210.3928°

Arg. of periapsis

151.234°

True anomaly

3.20711°

Mean anomaly

3.1622°

Eccentric anomaly

3.18462°

Mean motion

3.33517 °/min

Orbital period

107.94 mins

BSTAR

0.000064324

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #65 in the year 1965 (1965-08-13 UTC)

OPS 8464 DEB *, 2335 (Decayed)

THOR ABLESTAR DEB, 5265

DODECAPOLE 2 DEB, 41734

THOR ABLESTAR DEB, 1504

DODECAPOLE 2, 1510

CALSPHERE 4(A), 1520

TEMPSAT 1, 1512

OPS 8464 (TRANSIT 5B-7), 1514

TRANSIT 5B-7 DEB, 3809 (Decayed)

THOR ABLESTAR DEB, 3810

PORCUPINE 2, 1577

THOR ABLESTAR DEB, 5363 (Decayed)

THOR ABLESTAR DEB, 1522

TRANSIT 5B-7 DEB, 11855 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

THOR ABLESTAR DEB Visibility forecast

Loading observer location...
Set Observer location

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.
10 mins	2026-07-27 11:31:25.879Z	28.97° NE	2026-07-27 11:36:25.879Z	86.47° E	26.088°	2026-07-27 11:41:25.879Z	139.204° SSE
10 mins	2026-07-27 13:19:25.879Z	342.701° N	2026-07-27 13:24:25.879Z	272.462° WNW	34.29°	2026-07-27 13:29:25.879Z	214.555° SW
11 mins	2026-07-27 23:38:25.879Z	134.768° SE	2026-07-27 23:43:25.879Z	76.352° E	30.474°	2026-07-27 23:49:25.879Z	15.252° NNE
10 mins	2026-07-28 01:26:25.879Z	216.901° SW	2026-07-28 01:31:25.879Z	282.684° WNW	31.752°	2026-07-28 01:36:25.879Z	337.76° N

Items per page:

1–4 of 4 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

Check out THOR ABLESTAR DEB, 1521 on other resources

View THOR ABLESTAR DEB, 1521 on Heavens-Above

View THOR ABLESTAR DEB, 1521 on Keep Track

View THOR ABLESTAR DEB, 1521 on Celestrak

View THOR ABLESTAR DEB, 1521 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 ABLESTAR DEB, 1521

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2026-07-26T12:15:42.687Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #65 in the year 1965 (1965-08-13 UTC)

THOR ABLESTAR DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out THOR ABLESTAR DEB, 1521 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 20 hours ago