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.

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Iframe URL

https://www.satcat.com/sats-embedded/21363?theme=dark&initialShowStats=false

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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 (51 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)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 21363U 75052CH  26031.54245844 -.00000029  00000-0  29650-4 0  9990
2 21363  99.7424 320.0441 0173979 230.1698 308.1659 13.10266586658550

Epoch: 2026-01-31T13:01Z

TLE epoch observation values (Epoch: 2026-01-31T13:01:08.409Z)

Latitude

3.11397°

Longitude

174.52656°

Altitude

1,144.23 km

Speed

7.319 km/s

True Right ascension

09h 22m 18s

True Declination

3° 05' 47"

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

16:52:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,351.666 km

Perigee altitude

1,087.301 km

Semi-major axis

7,597.621 km

Eccentricity

0.0174

Inclination

99.7424°

RAAN

320.0441°

Arg. of periapsis

230.1698°

True anomaly

306.57731°

Mean anomaly

308.1659°

Eccentric anomaly

307.37373°

Mean motion

3.27738 °/min

Orbital period

109.84 mins

BSTAR

0.00002965

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

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DELTA 1 DEB Visibility forecast

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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.
12 mins	2026-02-01 17:34:12.862Z	112.833° SE	2026-02-01 17:40:12.862Z	60.694° ENE	25.339°	2026-02-01 17:46:12.862Z	7.702° NNE
14 mins	2026-02-01 19:21:12.862Z	177.94° S	2026-02-01 19:28:12.862Z	270.734° WNW	42.21°	2026-02-01 19:35:12.862Z	338.772° N
10 mins	2026-02-02 06:55:12.862Z	46.55° ENE	2026-02-02 06:59:12.862Z	89.838° E	26.252°	2026-02-02 07:05:12.862Z	151.408° SSE
12 mins	2026-02-02 08:42:12.862Z	1.887° NNE	2026-02-02 08:48:12.862Z	287.627° WNW	37.936°	2026-02-02 08:54:12.862Z	220.883° SW

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

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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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-01-31T13:01:08.409Z)

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: 1 day ago