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 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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 18 hours ago

TLE from 18 hours ago

0 DELTA 1 DEB
1 21512U 75052GH  25350.20196247  .00000143  00000-0  33882-3 0  9991
2 21512  99.9118 244.8002 0036333 279.5208 233.3002 13.40543452684294

Epoch: 2025-12-16T04:50Z

TLE epoch observation values (Epoch: 2025-12-16T04:50:49.557Z)

Latitude

27.10555°

Longitude

-87.89069°

Altitude

1,126.757 km

Speed

7.284 km/s

True Right ascension

04h 39m 37s

True Declination

26° 58' 23"

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

21:34:44

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,131.767 km

Perigee altitude

1,077.393 km

Semi-major axis

7,482.717 km

Eccentricity

0.00363

Inclination

99.9118°

RAAN

244.8002°

Arg. of periapsis

279.5208°

True anomaly

232.96729°

Mean anomaly

233.3002°

Eccentric anomaly

233.13365°

Mean motion

3.35316 °/min

Orbital period

107.36 mins

BSTAR

0.00033882

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

DELTA 1 DEB, 21431 (Decayed)

DELTA 1 DEB, 7965 (Decayed)

DELTA 1 DEB, 35533 (Decayed)

DELTA 1 DEB, 21495 (Decayed)

DELTA 1 DEB, 21539 (Decayed)

DELTA 1 DEB, 37627 (Decayed)

DELTA 1 DEB, 21521 (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	2025-12-17 05:45:53.883Z	22.571° NE	2025-12-17 05:51:53.883Z	106.834° ESE	42.167°	2025-12-17 05:57:53.883Z	183.215° SSW
8 mins	2025-12-17 07:33:53.883Z	336.003° NNW	2025-12-17 07:36:53.883Z	302.601° NW	22°	2025-12-17 07:41:53.883Z	252.508° W
11 mins	2025-12-17 16:02:53.883Z	122.676° SE	2025-12-17 16:07:53.883Z	64.045° ENE	30.408°	2025-12-17 16:13:53.883Z	1.642° NNE
11 mins	2025-12-17 17:48:53.883Z	199.869° SSW	2025-12-17 17:53:53.883Z	268.227° W	33.164°	2025-12-17 17:59:53.883Z	330.334° NNW

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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: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2025-12-16T04:50:49.557Z)

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: 18 hours ago