DELTA 1 DEB, 21356

Orbit data source: Space-Track

DELTA 1 DEB, 21356 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/21356?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21356, 1975-052CA

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: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 21356U 75052CA  26190.23492683  .00000017  00000-0  12073-3 0  9995
2 21356  99.7260 107.1329 0091518 229.1474 286.4574 13.30791019705134

Epoch: 2026-07-09T05:38Z

TLE epoch observation values (Epoch: 2026-07-09T05:38:17.678Z)

Latitude

25.04255°

Longitude

-80.05086°

Altitude

1,127.753 km

Speed

7.3 km/s

True Right ascension

19h 26m 48s

True Declination

24° 55' 03"

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

00:07:38

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,209.924 km

Perigee altitude

1,072.295 km

Semi-major axis

7,519.246 km

Eccentricity

0.00915

Inclination

99.726°

RAAN

107.1329°

Arg. of periapsis

229.1474°

True anomaly

285.44843°

Mean anomaly

286.4574°

Eccentric anomaly

285.95324°

Mean motion

3.32875 °/min

Orbital period

108.15 mins

BSTAR

0.00012073

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

DELTA 1 DEB, 21318 (Decayed)

DELTA 1 DEB, 26843

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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	2026-07-10 17:05:25.227Z	113.024° SE	2026-07-10 17:10:25.227Z	63.814° ENE	25.566°	2026-07-10 17:16:25.227Z	6.485° NNE
12 mins	2026-07-10 18:51:25.227Z	185.035° SSW	2026-07-10 18:56:25.227Z	247.702° W	40.087°	2026-07-10 19:03:25.227Z	336.3° NNW
9 mins	2026-07-11 06:13:25.227Z	48.977° ENE	2026-07-11 06:17:25.227Z	92.725° ESE	23.532°	2026-07-11 06:22:25.227Z	144.82° SSE
11 mins	2026-07-11 07:59:25.227Z	1.63° NNE	2026-07-11 08:04:25.227Z	291.915° WNW	39.367°	2026-07-11 08:10:25.227Z	217.227° SW

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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, 21356 on other resources

View DELTA 1 DEB, 21356 on Heavens-Above

View DELTA 1 DEB, 21356 on Keep Track

View DELTA 1 DEB, 21356 on Celestrak

View DELTA 1 DEB, 21356 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, 21356

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: 2026-07-09T05:38:17.678Z)

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, 21356 on other resources

Documentation

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