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: 6 hours ago

TLE from 6 hours ago

0 DELTA 1 DEB
1 21366U 75052CL  26046.17295112  .00000141  00000-0  31843-3 0  9991
2 21366  99.6676 268.2582 0021231 259.6899 225.1784 13.43780050701472

Epoch: 2026-02-15T04:09Z

TLE epoch observation values (Epoch: 2026-02-15T04:09:02.976Z)

Latitude

54.24291°

Longitude

-105.57671°

Altitude

1,115.271 km

Speed

7.295 km/s

True Right ascension

06h 47m 29s

True Declination

54° 05' 15"

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

12:36:14

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,108.4 km

Perigee altitude

1,076.678 km

Semi-major axis

7,470.676 km

Eccentricity

0.00212

Inclination

99.6676°

RAAN

268.2582°

Arg. of periapsis

259.6899°

True anomaly

225.00616°

Mean anomaly

225.1784°

Eccentric anomaly

225.09225°

Mean motion

3.36127 °/min

Orbital period

107.1 mins

BSTAR

0.00031843

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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.
5 mins	2026-02-15 12:40:01.667Z	79.903° E	2026-02-15 12:43:01.667Z	52.831° ENE	13.041°	2026-02-15 12:45:01.667Z	34.342° NE
12 mins	2026-02-15 14:22:01.667Z	154.357° SSE	2026-02-15 14:27:01.667Z	100.991° ESE	43.612°	2026-02-15 14:34:01.667Z	349.088° N
6 mins	2026-02-15 16:11:01.667Z	242.004° WSW	2026-02-15 16:14:01.667Z	273.401° WNW	17.122°	2026-02-15 16:17:01.667Z	302.747° NW
12 mins	2026-02-16 03:22:01.667Z	21.992° NNE	2026-02-16 03:27:01.667Z	78.098° E	42.416°	2026-02-16 03:34:01.667Z	185.675° SSW
8 mins	2026-02-16 05:09:01.667Z	337.797° N	2026-02-16 05:12:01.667Z	306.257° NW	20.577°	2026-02-16 05:17:01.667Z	255.248° W

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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: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-02-15T04:09:02.976Z)

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: 6 hours ago