DELTA 1 DEB, 21363

Orbit data source: Space-Track

DELTA 1 DEB, 21363 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 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/21363?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/21363?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

21363, 1975-052CH

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1975-06-12 (50 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.3 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 DELTA 1 DEB
1 21363U 75052CH  25300.39462905  .00000095  00000-0  35348-3 0  9992
2 21363  99.7316 232.3501 0175356  92.4002  26.5175 13.10240229645962

Epoch: 2025-10-27T09:28Z

TLE epoch observation values (Epoch: 2025-10-27T09:28:15.949Z)

Latitude

58.85484°

Longitude

-109.31368°

Altitude

1,113.286 km

Speed

7.358 km/s

True Right ascension

04h 34m 59s

True Declination

58° 42' 35"

Sunlit

Object was in full shadow 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

16:43:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,352.816 km

Perigee altitude

1,086.354 km

Semi-major axis

7,597.722 km

Eccentricity

0.01754

Inclination

99.7316°

RAAN

232.3501°

Arg. of periapsis

92.4002°

True anomaly

27.43255°

Mean anomaly

26.5175°

Eccentric anomaly

26.97321°

Mean motion

3.27731 °/min

Orbital period

109.85 mins

BSTAR

0.00035348

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB, 21544 (Decayed)

DELTA 1 DEB, 21378 (Decayed)

DELTA 1 DEB, 21491 (Decayed)

DELTA 1 DEB, 21328 (Decayed)

DELTA 1 DEB, 21687 (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

DELTA 1 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.
11 mins	2025-10-28 07:28:58.322Z	38.39° NE	2025-10-28 07:33:58.322Z	91.49° ESE	27.37°	2025-10-28 07:39:58.322Z	155.364° SSE
11 mins	2025-10-28 09:17:58.322Z	356.08° N	2025-10-28 09:22:58.322Z	285.61° WNW	35.054°	2025-10-28 09:28:58.322Z	223.725° SW
8 mins	2025-10-28 18:01:58.322Z	101.351° ESE	2025-10-28 18:05:58.322Z	59.691° ENE	21.185°	2025-10-28 18:09:58.322Z	17.846° NNE
12 mins	2025-10-28 19:47:58.322Z	177.862° S	2025-10-28 19:53:58.322Z	270.595° WNW	42.018°	2025-10-28 19:59:58.322Z	338.478° N

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 ascending 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 ascending order

Check out DELTA 1 DEB, 21363 on other resources

View DELTA 1 DEB, 21363 on Heavens-Above

View DELTA 1 DEB, 21363 on Keep Track

View DELTA 1 DEB, 21363 on Celestrak

View DELTA 1 DEB, 21363 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

DELTA 1 DEB, 21363

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2025-10-27T09:28:15.949Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 21363 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago