DELTA 1 DEB, 21446

Orbit data source: Space-Track

DELTA 1 DEB, 21446 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/21446?theme=dark&initialShowStats=false

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Identifier

21446, 1975-052EE

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, 0.1 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 DELTA 1 DEB
1 21446U 75052EE  26092.18939271  .00000054  00000-0  33431-3 0  9991
2 21446  99.7216 350.9783 0373314 218.8368 301.1425 12.71760448619760

Epoch: 2026-04-02T04:32Z

TLE epoch observation values (Epoch: 2026-04-02T04:32:43.530Z)

Latitude

23.42913°

Longitude

-83.50851°

Altitude

1,235.852 km

Speed

7.304 km/s

True Right ascension

11h 40m 51s

True Declination

23° 18' 42"

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

20:32:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,661.51 km

Perigee altitude

1,082.849 km

Semi-major axis

7,750.317 km

Eccentricity

0.03733

Inclination

99.7216°

RAAN

350.9783°

Arg. of periapsis

218.8368°

True anomaly

297.39338°

Mean anomaly

301.1425°

Eccentric anomaly

299.27678°

Mean motion

3.181 °/min

Orbital period

113.17 mins

BSTAR

0.00033431

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

DELTA 1 DEB, 21687 (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.
13 mins	2026-04-02 15:11:25.665Z	101.159° ESE	2026-04-02 15:18:25.665Z	51.346° ENE	21.87°	2026-04-02 15:24:25.665Z	9.312° NNE
17 mins	2026-04-02 17:00:25.665Z	162.186° S	2026-04-02 17:08:25.665Z	357.939° N	44.961°	2026-04-02 17:17:25.665Z	345.634° N
11 mins	2026-04-02 18:55:25.665Z	233.889° WSW	2026-04-02 19:00:25.665Z	270.323° WNW	19.623°	2026-04-02 19:06:25.665Z	312.872° NW
11 mins	2026-04-03 04:55:25.665Z	40.38° NE	2026-04-03 05:00:25.665Z	86.762° E	26.31°	2026-04-03 05:06:25.665Z	148.41° SSE
13 mins	2026-04-03 06:46:25.665Z	2.893° NNE	2026-04-03 06:52:25.665Z	300.956° NW	38.506°	2026-04-03 06:59:25.665Z	219.81° 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, 21446 on other resources

View DELTA 1 DEB, 21446 on Heavens-Above

View DELTA 1 DEB, 21446 on Keep Track

View DELTA 1 DEB, 21446 on Celestrak

View DELTA 1 DEB, 21446 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, 21446

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-04-02T04:32:43.530Z)

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, 21446 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago