DELTA 1 DEB, 21329

Orbit data source: Space-Track

DELTA 1 DEB, 21329 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/21329?theme=dark&initialShowStats=false

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Identifier

21329, 1975-052AX

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, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 21329U 75052AX  26171.11218343  .00011841  00000-0  24357-2 0  9994
2 21329  99.6678 222.2851 0102412 359.3876  28.2516 14.57468911769010

Epoch: 2026-06-20T02:41Z

TLE epoch observation values (Epoch: 2026-06-20T02:41:32.648Z)

Latitude

27.81005°

Longitude

-91.55969°

Altitude

641.065 km

Speed

7.574 km/s

True Right ascension

14h 28m 37s

True Declination

27° 39' 58"

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

09:15:53

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

770.989 km

Perigee altitude

626.042 km

Semi-major axis

7,076.653 km

Eccentricity

0.01024

Inclination

99.6678°

RAAN

222.2851°

Arg. of periapsis

359.3876°

True anomaly

28.81342°

Mean anomaly

28.2516°

Eccentric anomaly

28.53187°

Mean motion

3.64587 °/min

Orbital period

98.74 mins

BSTAR

0.0024357

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

DELTA 1 DEB, 35533 (Decayed)

DELTA 1 DEB, 21681 (Decayed)

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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.
6 mins	2026-06-22 02:29:52.815Z	112.874° SE	2026-06-22 02:32:52.815Z	59.866° ENE	23.098°	2026-06-22 02:35:52.815Z	13.968° NNE
6 mins	2026-06-22 04:07:52.815Z	217.414° SW	2026-06-22 04:09:52.815Z	257.163° W	25.638°	2026-06-22 04:13:52.815Z	321.777° NNW
8 mins	2026-06-22 16:06:52.815Z	30.862° NE	2026-06-22 16:09:52.815Z	97.365° ESE	39.896°	2026-06-22 16:14:52.815Z	180.944° SSW
5 mins	2026-06-22 17:44:52.815Z	328.145° NNW	2026-06-22 17:46:52.815Z	300.661° NW	17.122°	2026-06-22 17:49:52.815Z	261.135° W

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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, 21329 on other resources

View DELTA 1 DEB, 21329 on Heavens-Above

View DELTA 1 DEB, 21329 on Keep Track

View DELTA 1 DEB, 21329 on Celestrak

View DELTA 1 DEB, 21329 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, 21329

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T02:41:32.648Z)

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, 21329 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago