DELTA 1 DEB, 21457

Orbit data source: Space-Track

DELTA 1 DEB, 21457 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/21457?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21457, 1975-052ER

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, 0.076 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 21457U 75052ER  26301.68724027  .00000570  00000-0  83048-3 0  9994
2 21457  99.9550 213.8637 0279430 193.3687 233.7495 13.44682729720277

Epoch: 2026-10-28T16:29Z

TLE epoch observation values (Epoch: 2026-10-28T16:29:37.559Z)

Latitude

62.91844°

Longitude

-90.54587°

Altitude

1,229.752 km

Speed

7.184 km/s

True Right ascension

12h 55m 34s

True Declination

62° 47' 15"

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

13:41:32

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,297.865 km

Perigee altitude

880.545 km

Semi-major axis

7,467.342 km

Eccentricity

0.02794

Inclination

99.955°

RAAN

213.8637°

Arg. of periapsis

193.3687°

True anomaly

231.22037°

Mean anomaly

233.7495°

Eccentric anomaly

232.47967°

Mean motion

3.36352 °/min

Orbital period

107.03 mins

BSTAR

0.00083048

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

DELTA 1 DEB, 21517 (Decayed)

DELTA 1 DEB, 21346 (Decayed)

DELTA 1 DEB, 21454 (Decayed)

DELTA 1 DEB, 21449 (Decayed)

NIMBUS 6, 7924

DELTA 1 DEB, 42660 (Decayed)

DELTA 1 DEB, 21376 (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	2026-10-29 19:01:39.797Z	194.665° SSW	2026-10-29 19:08:39.797Z	262.259° W	40.068°	2026-10-29 19:14:39.797Z	326.237° NNW
8 mins	2026-10-30 06:18:39.797Z	45.378° ENE	2026-10-30 06:22:39.797Z	99.687° ESE	29.689°	2026-10-30 06:26:39.797Z	150.879° SSE
9 mins	2026-10-30 08:03:39.797Z	354.93° N	2026-10-30 08:07:39.797Z	304.461° NW	38.482°	2026-10-30 08:12:39.797Z	231.531° WSW
8 mins	2026-10-30 16:33:39.797Z	93.621° ESE	2026-10-30 16:37:39.797Z	55.246° ENE	21.855°	2026-10-30 16:41:39.797Z	18.183° NNE

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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, 21457 on other resources

View DELTA 1 DEB, 21457 on Heavens-Above

View DELTA 1 DEB, 21457 on Keep Track

View DELTA 1 DEB, 21457 on Celestrak

View DELTA 1 DEB, 21457 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, 21457

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: 2026-10-28T16:29:37.559Z)

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, 21457 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago