DELTA 1 DEB, 21754

Orbit data source: Space-Track

DELTA 1 DEB, 21754 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/21754?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21754, 1975-052JQ

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: 3 days ago

TLE from 3 days ago

0 DELTA 1 DEB
1 21754U 75052JQ  26170.29445407  .00000104  00000-0  28953-3 0  9994
2 21754 100.0508  94.3122 0075502 317.5587 193.9514 13.35324904697571

Epoch: 2026-06-19T07:04Z

TLE epoch observation values (Epoch: 2026-06-19T07:04:00.831Z)

Latitude

28.25905°

Longitude

-93.77758°

Altitude

1,185.114 km

Speed

7.237 km/s

True Right ascension

18h 39m 00s

True Declination

28° 07' 26"

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

12:48:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,180.727 km

Perigee altitude

1,067.441 km

Semi-major axis

7,502.221 km

Eccentricity

0.00755

Inclination

100.0508°

RAAN

94.3122°

Arg. of periapsis

317.5587°

True anomaly

193.7447°

Mean anomaly

193.9514°

Eccentric anomaly

193.84786°

Mean motion

3.34009 °/min

Orbital period

107.78 mins

BSTAR

0.00028953

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

DELTA 1 DEB, 26833

DELTA 1 DEB, 42655

DELTA 1 DEB, 21320

DELTA 1 DEB, 21676 (Decayed)

DELTA 1 DEB, 27574 (Decayed)

DELTA 1 DEB, 21391 (Decayed)

DELTA 1 DEB, 21519 (Decayed)

DELTA 1 DEB, 21505 (Decayed)

DELTA 1 DEB, 21376 (Decayed)

DELTA 1 DEB, 21513 (Decayed)

DELTA 1 DEB, 21456 (Decayed)

DELTA 1 DEB, 21381 (Decayed)

DELTA 1 DEB, 21507 (Decayed)

DELTA 1 DEB, 21385 (Decayed)

DELTA 1 DEB, 21318 (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.
12 mins	2026-06-22 06:50:40.815Z	35.062° NE	2026-06-22 06:56:40.815Z	93.567° ESE	27.938°	2026-06-22 07:02:40.815Z	155.761° SSE
12 mins	2026-06-22 08:37:40.815Z	0.334° NNE	2026-06-22 08:43:40.815Z	280.792° WNW	36.278°	2026-06-22 08:49:40.815Z	222.409° SW
7 mins	2026-06-22 17:12:40.815Z	89.911° E	2026-06-22 17:15:40.815Z	59.862° ENE	18.351°	2026-06-22 17:19:40.815Z	20.438° NNE
12 mins	2026-06-22 18:55:40.815Z	168.331° S	2026-06-22 19:01:40.815Z	291.342° WNW	44.372°	2026-06-22 19:07:40.815Z	342.309° N

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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, 21754 on other resources

View DELTA 1 DEB, 21754 on Heavens-Above

View DELTA 1 DEB, 21754 on Keep Track

View DELTA 1 DEB, 21754 on Celestrak

View DELTA 1 DEB, 21754 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, 21754

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 3 days ago

TLE from 3 days ago

TLE epoch observation values (Epoch: 2026-06-19T07:04:00.831Z)

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, 21754 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 3 days ago