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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ISO8601 Format

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

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 21512U 75052GH  26167.94759049  .00000088  00000-0  23812-3 0  9994
2 21512  99.8963  63.4800 0035667 194.0862 177.9854 13.40600357708785

Epoch: 2026-06-16T22:44Z

TLE epoch observation values (Epoch: 2026-06-16T22:44:31.818Z)

Latitude

11.86248°

Longitude

175.04572°

Altitude

1,135.74 km

Speed

7.273 km/s

True Right ascension

04h 05m 33s

True Declination

11° 47' 49"

Sunlit

Object was in daylight 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

18:51:21

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,131.056 km

Perigee altitude

1,077.68 km

Semi-major axis

7,482.505 km

Eccentricity

0.00357

Inclination

99.8963°

RAAN

63.48°

Arg. of periapsis

194.0862°

True anomaly

177.9997°

Mean anomaly

177.9854°

Eccentric anomaly

177.99256°

Mean motion

3.3533 °/min

Orbital period

107.36 mins

BSTAR

0.00023812

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

DELTA 1 DEB, 21390 (Decayed)

DELTA 1 DEB, 21455 (Decayed)

DELTA 1 DEB, 21454 (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.
11 mins	2026-06-18 16:00:30.622Z	127.252° SE	2026-06-18 16:05:30.622Z	74.363° E	31.542°	2026-06-18 16:11:30.622Z	2.835° NNE
11 mins	2026-06-18 17:46:30.622Z	199.561° SSW	2026-06-18 17:51:30.622Z	257.421° W	31.891°	2026-06-18 17:57:30.622Z	327.039° NNW
10 mins	2026-06-19 05:02:30.622Z	39.73° NE	2026-06-19 05:07:30.622Z	99.503° ESE	28.412°	2026-06-19 05:12:30.622Z	155.595° SSE
10 mins	2026-06-19 06:48:30.622Z	355.859° N	2026-06-19 06:53:30.622Z	287.626° WNW	33.895°	2026-06-19 06:58:30.622Z	228.763° 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, 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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-06-16T22:44:31.818Z)

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: 1 day ago