DELTA 1 DEB, 21475

Orbit data source: Space-Track

DELTA 1 DEB, 21475 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/21475?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21475, 1975-052FK

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)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 21475U 75052FK  26001.74073245  .00000094  00000-0  19744-3 0  9990
2 21475  99.5884 175.0220 0090795 287.5203 142.0081 13.54122796708975

Epoch: 2026-01-01T17:46Z

TLE epoch observation values (Epoch: 2026-01-01T17:46:39.283Z)

Latitude

68.13134°

Longitude

142.21213°

Altitude

1,122.285 km

Speed

7.271 km/s

True Right ascension

10h 01m 04s

True Declination

68° 01' 05"

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

19:45:58

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,121.902 km

Perigee altitude

986.934 km

Semi-major axis

7,432.555 km

Eccentricity

0.00908

Inclination

99.5884°

RAAN

175.022°

Arg. of periapsis

287.5203°

True anomaly

142.64285°

Mean anomaly

142.0081°

Eccentric anomaly

142.32604°

Mean motion

3.38716 °/min

Orbital period

106.28 mins

BSTAR

0.00019744

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

DELTA 1 DEB, 42660 (Decayed)

DELTA 1 DEB, 21518 (Decayed)

DELTA 1 DEB, 21348 (Decayed)

DELTA 1 DEB, 21687 (Decayed)

DELTA 1 DEB, 21675 (Decayed)

DELTA 1 DEB, 21517 (Decayed)

DELTA 1 DEB, 21510 (Decayed)

DELTA 1 DEB, 21334 (Decayed)

DELTA 1 DEB, 37629 (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.
12 mins	2026-01-03 00:10:34.775Z	18.723° NNE	2026-01-03 00:16:34.775Z	121.442° SE	44.098°	2026-01-03 00:22:34.775Z	189.46° SSW
7 mins	2026-01-03 01:57:34.775Z	332.285° NNW	2026-01-03 02:00:34.775Z	300.324° NW	19.181°	2026-01-03 02:04:34.775Z	261.136° W
10 mins	2026-01-03 10:21:34.775Z	121.351° SE	2026-01-03 10:26:34.775Z	55.521° ENE	30.141°	2026-01-03 10:31:34.775Z	3.838° NNE
10 mins	2026-01-03 12:06:34.775Z	203.393° SW	2026-01-03 12:10:34.775Z	257.646° W	32.568°	2026-01-03 12:16:34.775Z	328.684° 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, 21475 on other resources

View DELTA 1 DEB, 21475 on Heavens-Above

View DELTA 1 DEB, 21475 on Keep Track

View DELTA 1 DEB, 21475 on Celestrak

View DELTA 1 DEB, 21475 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, 21475

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: 2026-01-01T17:46:39.283Z)

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, 21475 on other resources

Documentation

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