THOR ABLESTAR R/B, 204

Orbit data source: Space-Track

THOR ABLESTAR R/B, 204 is space debris in LEO originally from a launch on Wed, 15 Nov 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/204?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/204?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

204, 1961-031C

Orbit

LEO

Country

Related business

United States Space Force (US)

Manufacturer

Aerojet

Mission

Spacecraft

Bus & Motor

ABLESTAR, Unknown motor

Mass

~600 kg wet, 600 kg dry

Launch date (UTC)

1961-11-15 (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

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 THOR ABLESTAR R/B
1 00204U 61031C   26120.85194836  .00000063  00000-0  47308-4 0  9997
2 00204  32.4434 295.3463 0098916 311.5483  47.6690 13.65079538216556

Epoch: 2026-04-30T20:26Z

TLE epoch observation values (Epoch: 2026-04-30T20:26:48.338Z)

Latitude

-0.00001°

Longitude

129.85226°

Altitude

967.178 km

Speed

7.394 km/s

True Right ascension

19h 41m 23s

True Declination

0° 00' 00"

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

20:52:02

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,093.866 km

Perigee altitude

947.494 km

Semi-major axis

7,398.817 km

Eccentricity

0.00989

Inclination

32.4434°

RAAN

295.3463°

Arg. of periapsis

311.5483°

True anomaly

48.51396°

Mean anomaly

47.669°

Eccentric anomaly

48.09078°

Mean motion

3.41036 °/min

Orbital period

105.56 mins

BSTAR

0.000047308

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #31 in the year 1961 (1961-11-15 UTC)

TRANSIT 4B, 202

TRAAC, 205

TRAAC DEB, 10796

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 R/B 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.
7 mins	2026-05-01 14:11:34.644Z	181.86° SSW	2026-05-01 14:14:34.644Z	152.298° SSE	16.626°	2026-05-01 14:18:34.644Z	114.724° SE
10 mins	2026-05-01 16:01:34.644Z	221.597° SW	2026-05-01 16:05:34.644Z	173.768° S	30.748°	2026-05-01 16:11:34.644Z	104.172° ESE
11 mins	2026-05-01 17:52:34.644Z	247.385° WSW	2026-05-01 17:57:34.644Z	185.678° SSW	35.743°	2026-05-01 18:03:34.644Z	113.752° SE
11 mins	2026-05-01 19:44:34.644Z	252.576° W	2026-05-01 19:49:34.644Z	195.575° SSW	29.034°	2026-05-01 19:55:34.644Z	136.706° SSE
5 mins	2026-05-01 21:38:34.644Z	231.387° WSW	2026-05-01 21:40:34.644Z	213.358° SW	14.309°	2026-05-01 21:43:34.644Z	186.634° SSW

Items per page:

1–5 of 5 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 R/B, 204 on other resources

View THOR ABLESTAR R/B, 204 on Heavens-Above

View THOR ABLESTAR R/B, 204 on Keep Track

View THOR ABLESTAR R/B, 204 on Celestrak

View THOR ABLESTAR R/B, 204 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 R/B, 204

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-04-30T20:26:48.338Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #31 in the year 1961 (1961-11-15 UTC)

THOR ABLESTAR R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out THOR ABLESTAR R/B, 204 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 17 hours ago