DELTA 1 DEB, 21366

Orbit data source: Space-Track

DELTA 1 DEB, 21366 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/21366?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21366, 1975-052CL

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, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

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

TLE from 11 hours ago

0 DELTA 1 DEB
1 21366U 75052CL  26242.13293313  .00000090  00000-0  22907-3 0  9990
2 21366  99.6407  96.0924 0021979 134.5755 352.0598 13.43846842727790

Epoch: 2026-08-30T03:11Z

TLE epoch observation values (Epoch: 2026-08-30T03:11:25.422Z)

Latitude

52.42145°

Longitude

-97.40994°

Altitude

1,087.131 km

Speed

7.322 km/s

True Right ascension

19h 15m 06s

True Declination

52° 15' 45"

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

05:54:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,108.709 km

Perigee altitude

1,075.871 km

Semi-major axis

7,470.427 km

Eccentricity

0.0022

Inclination

99.6407°

RAAN

96.0924°

Arg. of periapsis

134.5755°

True anomaly

352.02491°

Mean anomaly

352.0598°

Eccentric anomaly

352.04237°

Mean motion

3.36144 °/min

Orbital period

107.1 mins

BSTAR

0.00022907

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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.
11 mins	2026-08-30 15:09:44.334Z	199.349° SSW	2026-08-30 15:15:44.334Z	263.755° W	29.555°	2026-08-30 15:20:44.334Z	322.446° NNW
10 mins	2026-08-31 02:24:44.334Z	37.906° NE	2026-08-31 02:29:44.334Z	100.662° ESE	30.171°	2026-08-31 02:34:44.334Z	158.46° S
10 mins	2026-08-31 04:10:44.334Z	352.324° N	2026-08-31 04:14:44.334Z	302.805° NW	31.856°	2026-08-31 04:20:44.334Z	230.017° WSW
7 mins	2026-08-31 12:41:44.334Z	92.435° ESE	2026-08-31 12:44:44.334Z	61.529° ENE	18.609°	2026-08-31 12:48:44.334Z	20.684° 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, 21366 on other resources

View DELTA 1 DEB, 21366 on Heavens-Above

View DELTA 1 DEB, 21366 on Keep Track

View DELTA 1 DEB, 21366 on Celestrak

View DELTA 1 DEB, 21366 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, 21366

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: 2026-08-30T03:11:25.422Z)

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, 21366 on other resources

Documentation

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