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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 DELTA 1 DEB
1 21372U 75052CS  26168.97144856  .00000056  00000-0  20405-3 0  9996
2 21372 100.2091  74.6355 0060627 295.1968 127.5732 13.33602139706260

Epoch: 2026-06-17T23:18Z

TLE epoch observation values (Epoch: 2026-06-17T23:18:53.155Z)

Latitude

61.65735°

Longitude

159.29154°

Altitude

1,171.598 km

Speed

7.26 km/s

True Right ascension

03h 40m 56s

True Declination

61° 31' 17"

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

18:48:57

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,176.08 km

Perigee altitude

1,085.034 km

Semi-major axis

7,508.694 km

Eccentricity

0.00606

Inclination

100.2091°

RAAN

74.6355°

Arg. of periapsis

295.1968°

True anomaly

128.12129°

Mean anomaly

127.5732°

Eccentric anomaly

127.8475°

Mean motion

3.33577 °/min

Orbital period

107.92 mins

BSTAR

0.00020405

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

DELTA 1 DEB, 21390 (Decayed)

DELTA 1 DEB, 21455 (Decayed)

DELTA 1 DEB, 21454 (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.
7 mins	2026-06-18 08:36:06.098Z	334.776° NNW	2026-06-18 08:39:06.098Z	307.367° NW	15.812°	2026-06-18 08:43:06.098Z	271.568° WNW
11 mins	2026-06-18 17:08:06.098Z	141.938° SSE	2026-06-18 17:13:06.098Z	60.187° ENE	40.788°	2026-06-18 17:19:06.098Z	352.971° N
8 mins	2026-06-18 18:56:06.098Z	227.398° WSW	2026-06-18 19:00:06.098Z	272.675° WNW	22.016°	2026-06-18 19:04:06.098Z	312.351° NW
12 mins	2026-06-19 06:13:06.098Z	26.476° NE	2026-06-19 06:19:06.098Z	108.254° ESE	39.908°	2026-06-19 06:25:06.098Z	178.143° S

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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: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-06-17T23:18:53.155Z)

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: 9 hours ago