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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 21 hours ago

TLE from 21 hours ago

0 DELTA 1 DEB
1 21329U 75052AX  26031.61402390  .00015182  00000-0  34241-2 0  9996
2 21329  99.6718  61.0327 0111383  52.1981  65.3575 14.52638860748723

Epoch: 2026-01-31T14:44Z

TLE epoch observation values (Epoch: 2026-01-31T14:44:11.664Z)

Latitude

59.92463°

Longitude

-93.83124°

Altitude

694.949 km

Speed

7.532 km/s

True Right ascension

17h 12m 12s

True Declination

59° 46' 26"

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

13:23:34

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

793.203 km

Perigee altitude

635.21 km

Semi-major axis

7,092.344 km

Eccentricity

0.01114

Inclination

99.6718°

RAAN

61.0327°

Arg. of periapsis

52.1981°

True anomaly

66.52431°

Mean anomaly

65.3575°

Eccentric anomaly

65.94023°

Mean motion

3.63378 °/min

Orbital period

99.07 mins

BSTAR

0.0034241

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

DELTA 1 DEB, 21522 (Decayed)

DELTA 1 DEB, 21518 (Decayed)

DELTA 1 DEB, 37630 (Decayed)

DELTA 1 DEB, 21321 (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.
7 mins	2026-02-01 13:55:16.715Z	43.23° NE	2026-02-01 13:59:16.715Z	102.021° ESE	22.667°	2026-02-01 14:02:16.715Z	146.265° SSE
7 mins	2026-02-01 15:34:16.715Z	343.666° N	2026-02-01 15:37:16.715Z	282.379° WNW	28.947°	2026-02-01 15:41:16.715Z	228.169° WSW
6 mins	2026-02-02 01:04:16.715Z	115.859° SE	2026-02-02 01:06:16.715Z	77.074° E	26.748°	2026-02-02 01:10:16.715Z	7.452° NNE
5 mins	2026-02-02 02:42:16.715Z	223.484° SW	2026-02-02 02:44:16.715Z	257.747° W	20.752°	2026-02-02 02:47:16.715Z	308.403° NW

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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: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-01-31T14:44:11.664Z)

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: 21 hours ago