DELTA 1 DEB, 21372

Orbit data source: Space-Track

DELTA 1 DEB, 21372 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/21372?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21372, 1975-052CS

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: 11 hours ago

TLE from 11 hours ago

0 DELTA 1 DEB
1 21372U 75052CS  25353.98323970  .00000017  00000-0  12414-3 0  9996
2 21372 100.2208 255.3796 0061612   1.3646  21.5192 13.33570171682279

Epoch: 2025-12-19T23:35Z

TLE epoch observation values (Epoch: 2025-12-19T23:35:51.910Z)

Latitude

22.77516°

Longitude

168.27759°

Altitude

1,092.918 km

Speed

7.329 km/s

True Right ascension

16h 44m 14s

True Declination

22° 39' 29"

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

09:15:32

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,176.941 km

Perigee altitude

1,084.414 km

Semi-major axis

7,508.814 km

Eccentricity

0.00616

Inclination

100.2208°

RAAN

255.3796°

Arg. of periapsis

1.3646°

True anomaly

21.78005°

Mean anomaly

21.5192°

Eccentric anomaly

21.64944°

Mean motion

3.33569 °/min

Orbital period

107.92 mins

BSTAR

0.00012414

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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.
8 mins	2025-12-20 15:51:58.809Z	94.017° ESE	2025-12-20 15:55:58.809Z	53.565° ENE	18.17°	2025-12-20 15:59:58.809Z	15.934° NNE
12 mins	2025-12-20 17:35:58.809Z	169.439° S	2025-12-20 17:40:58.809Z	224.937° SW	44.226°	2025-12-20 17:47:58.809Z	342.096° N
7 mins	2025-12-21 04:56:58.809Z	61.382° ENE	2025-12-21 04:59:58.809Z	89.413° E	15.974°	2025-12-21 05:03:58.809Z	125.748° SE
12 mins	2025-12-21 06:41:58.809Z	13.115° NNE	2025-12-21 06:46:58.809Z	315.677° NNW	44.733°	2025-12-21 06:53:58.809Z	200.942° SSW
6 mins	2025-12-21 08:29:58.809Z	329.136° NNW	2025-12-21 08:32:58.809Z	300.408° NW	15.4°	2025-12-21 08:35:58.809Z	273.839° WNW

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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, 21372 on other resources

View DELTA 1 DEB, 21372 on Heavens-Above

View DELTA 1 DEB, 21372 on Keep Track

View DELTA 1 DEB, 21372 on Celestrak

View DELTA 1 DEB, 21372 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, 21372

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2025-12-19T23:35:51.910Z)

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, 21372 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago