DELTA 1 DEB, 21459

Orbit data source: Space-Track

DELTA 1 DEB, 21459 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/21459?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21459, 1975-052ET

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: 22 hours ago

TLE from 22 hours ago

0 DELTA 1 DEB
1 21459U 75052ET  26078.35589186  .00000137  00000-0  31989-3 0  9992
2 21459  99.6731 259.3577 0051440 327.6074 150.3639 13.41381132705049

Epoch: 2026-03-19T08:32Z

TLE epoch observation values (Epoch: 2026-03-19T08:32:29.056Z)

Latitude

60.35174°

Longitude

151.66375°

Altitude

1,147.838 km

Speed

7.268 km/s

True Right ascension

06h 26m 45s

True Declination

60° 12' 41"

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

11:50:39

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,139.925 km

Perigee altitude

1,062.975 km

Semi-major axis

7,479.587 km

Eccentricity

0.00514

Inclination

99.6731°

RAAN

259.3577°

Arg. of periapsis

327.6074°

True anomaly

150.65376°

Mean anomaly

150.3639°

Eccentric anomaly

150.50899°

Mean motion

3.35526 °/min

Orbital period

107.29 mins

BSTAR

0.00031989

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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.
11 mins	2026-03-20 10:55:49.399Z	127.26° SE	2026-03-20 11:01:49.399Z	57.771° ENE	30.48°	2026-03-20 11:06:49.399Z	4.131° NNE
10 mins	2026-03-20 12:42:49.399Z	203.412° SW	2026-03-20 12:46:49.399Z	255.263° W	32.065°	2026-03-20 12:52:49.399Z	327.684° NNW
10 mins	2026-03-20 23:57:49.399Z	41.241° NE	2026-03-21 00:02:49.399Z	102.202° ESE	28.851°	2026-03-21 00:07:49.399Z	155.481° SSE
10 mins	2026-03-21 01:43:49.399Z	354.311° N	2026-03-21 01:48:49.399Z	282.02° WNW	34.523°	2026-03-21 01:53:49.399Z	227.47° WSW

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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, 21459 on other resources

View DELTA 1 DEB, 21459 on Heavens-Above

View DELTA 1 DEB, 21459 on Keep Track

View DELTA 1 DEB, 21459 on Celestrak

View DELTA 1 DEB, 21459 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, 21459

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-03-19T08:32:29.056Z)

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, 21459 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago