DELTA 1 DEB, 21512

Orbit data source: Space-Track

DELTA 1 DEB, 21512 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 src="https://www.satcat.com/sats-embedded/21512?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/21512?theme=dark&initialShowStats=false

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Identifier

21512, 1975-052GH

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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 DELTA 1 DEB
1 21512U 75052GH  26078.49898214  .00000119  00000-0  29432-3 0  9992
2 21512  99.9052 336.0648 0037495  52.1773 127.2639 13.40575792696790

Epoch: 2026-03-19T11:58Z

TLE epoch observation values (Epoch: 2026-03-19T11:58:32.056Z)

Latitude

0.10424°

Longitude

159.40182°

Altitude

1,126.95 km

Speed

7.281 km/s

True Right ascension

10h 24m 19s

True Declination

0° 06' 13"

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

09:59:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,132.516 km

Perigee altitude

1,076.404 km

Semi-major axis

7,482.597 km

Eccentricity

0.00375

Inclination

99.9052°

RAAN

336.0648°

Arg. of periapsis

52.1773°

True anomaly

127.60488°

Mean anomaly

127.2639°

Eccentric anomaly

127.43449°

Mean motion

3.35324 °/min

Orbital period

107.36 mins

BSTAR

0.00029432

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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.
12 mins	2026-03-20 05:35:54.506Z	25.835° NE	2026-03-20 05:41:54.506Z	114.867° SE	39.703°	2026-03-20 05:47:54.506Z	179.151° S
9 mins	2026-03-20 07:22:54.506Z	343.936° N	2026-03-20 07:26:54.506Z	299.272° NW	23.833°	2026-03-20 07:31:54.506Z	247.72° W
9 mins	2026-03-20 15:53:54.506Z	113.37° SE	2026-03-20 15:57:54.506Z	64.631° ENE	27.295°	2026-03-20 16:02:54.506Z	7.984° NNE
10 mins	2026-03-20 17:38:54.506Z	194.647° SSW	2026-03-20 17:43:54.506Z	268.151° W	35.331°	2026-03-20 17:48:54.506Z	328.869° NNW
9 mins	2026-03-21 04:54:54.506Z	47.931° ENE	2026-03-21 04:58:54.506Z	93.521° ESE	24.626°	2026-03-21 05:03:54.506Z	147.423° SSE

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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, 21512 on other resources

View DELTA 1 DEB, 21512 on Heavens-Above

View DELTA 1 DEB, 21512 on Keep Track

View DELTA 1 DEB, 21512 on Celestrak

View DELTA 1 DEB, 21512 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, 21512

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-03-19T11:58:32.056Z)

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, 21512 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 17 hours ago