DELTA 1 DEB, 21285

Orbit data source: Space-Track

DELTA 1 DEB, 21285 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/21285?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21285, 1975-052W

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, 0.5 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 DELTA 1 DEB
1 21285U 75052W   26032.51924971  .00000027  00000-0  12536-3 0  9997
2 21285  99.6522 248.9273 0019023 301.7102 117.1989 13.41265977700353

Epoch: 2026-02-01T12:27Z

TLE epoch observation values (Epoch: 2026-02-01T12:27:43.174Z)

Latitude

57.86856°

Longitude

-85.35939°

Altitude

1,120.749 km

Speed

7.294 km/s

True Right ascension

15h 33m 11s

True Declination

57° 43' 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

19:59:41

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,116.107 km

Perigee altitude

1,087.648 km

Semi-major axis

7,480.015 km

Eccentricity

0.0019

Inclination

99.6522°

RAAN

248.9273°

Arg. of periapsis

301.7102°

True anomaly

117.39257°

Mean anomaly

117.1989°

Eccentric anomaly

117.29576°

Mean motion

3.35498 °/min

Orbital period

107.3 mins

BSTAR

0.00012536

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

DELTA 1 DEB, 21511 (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.
11 mins	2026-02-02 03:06:18.835Z	19.888° NNE	2026-02-02 03:11:18.835Z	111.402° ESE	44.224°	2026-02-02 03:17:18.835Z	189.649° SSW
7 mins	2026-02-02 04:53:18.835Z	333.211° NNW	2026-02-02 04:56:18.835Z	301.773° NW	18.87°	2026-02-02 05:00:18.835Z	262.439° W
10 mins	2026-02-02 13:22:18.835Z	126.479° SE	2026-02-02 13:27:18.835Z	58.912° ENE	32.906°	2026-02-02 13:32:18.835Z	2.775° NNE
10 mins	2026-02-02 15:08:18.835Z	206.882° SW	2026-02-02 15:12:18.835Z	254.355° W	29.682°	2026-02-02 15:18:18.835Z	325.044° NNW

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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, 21285 on other resources

View DELTA 1 DEB, 21285 on Heavens-Above

View DELTA 1 DEB, 21285 on Keep Track

View DELTA 1 DEB, 21285 on Celestrak

View DELTA 1 DEB, 21285 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, 21285

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-02-01T12:27:43.174Z)

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, 21285 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago