DELTA 1 DEB, 21353

Orbit data source: Space-Track

DELTA 1 DEB, 21353 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/21353?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21353, 1975-052BX

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)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 21353U 75052BX  26040.25890683 -.00000093  00000-0 -27553-3 0  9995
2 21353  99.5611 292.4635 0520635 224.9555 263.2856 12.40737861571768

Epoch: 2026-02-09T06:12Z

TLE epoch observation values (Epoch: 2026-02-09T06:12:49.550Z)

Latitude

56.48422°

Longitude

-105.43811°

Altitude

1,581.619 km

Speed

7.052 km/s

True Right ascension

08h 28m 29s

True Declination

56° 20' 32"

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

13:11:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,911.12 km

Perigee altitude

1,090.698 km

Semi-major axis

7,879.046 km

Eccentricity

0.05206

Inclination

99.5611°

RAAN

292.4635°

Arg. of periapsis

224.9555°

True anomaly

257.41551°

Mean anomaly

263.2856°

Eccentric anomaly

260.34484°

Mean motion

3.10336 °/min

Orbital period

116 mins

BSTAR

-0.00027553

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

DELTA 1 DEB, 7965 (Decayed)

DELTA 1 DEB, 21432 (Decayed)

DELTA 1 DEB, 21510 (Decayed)

DELTA 1 DEB, 21451 (Decayed)

DELTA 1 DEB, 21357 (Decayed)

DELTA 1 DEB, 21543 (Decayed)

DELTA 1 DEB, 21509 (Decayed)

DELTA 1 DEB, 21322 (Decayed)

DELTA 1 DEB, 21508 (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.
14 mins	2026-02-10 14:34:45.369Z	99.561° ESE	2026-02-10 14:41:45.369Z	55.416° ENE	22.938°	2026-02-10 14:48:45.369Z	9.409° NNE
19 mins	2026-02-10 16:25:45.369Z	159.902° S	2026-02-10 16:34:45.369Z	53.6° ENE	44.925°	2026-02-10 16:44:45.369Z	346.55° N
14 mins	2026-02-10 18:22:45.369Z	225.672° WSW	2026-02-10 18:29:45.369Z	271.842° WNW	22.528°	2026-02-10 18:36:45.369Z	317.273° NNW
13 mins	2026-02-11 04:38:45.369Z	31.161° NE	2026-02-11 04:45:45.369Z	97.127° ESE	32.905°	2026-02-11 04:51:45.369Z	159.291° S
14 mins	2026-02-11 06:32:45.369Z	0.564° NNE	2026-02-11 06:39:45.369Z	298.669° NW	34.452°	2026-02-11 06:46:45.369Z	229.675° WSW

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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, 21353 on other resources

View DELTA 1 DEB, 21353 on Heavens-Above

View DELTA 1 DEB, 21353 on Keep Track

View DELTA 1 DEB, 21353 on Celestrak

View DELTA 1 DEB, 21353 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, 21353

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: 2026-02-09T06:12:49.550Z)

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, 21353 on other resources

Documentation

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