DELTA 1 DEB, 21464

Orbit data source: Space-Track

DELTA 1 DEB, 21464 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/21464?theme=dark&initialShowStats=false

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Identifier

21464, 1975-052EY

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: 11 hours ago

TLE from 11 hours ago

0 DELTA 1 DEB
1 21464U 75052EY  26242.34434403  .00000786  00000-0  19055-2 0  9990
2 21464  99.7717 159.5896 0193061 230.4068 258.8795 13.18658965671230

Epoch: 2026-08-30T08:15Z

TLE epoch observation values (Epoch: 2026-08-30T08:15:51.324Z)

Latitude

51.88496°

Longitude

-110.29946°

Altitude

1,229.009 km

Speed

7.23 km/s

True Right ascension

23h 28m 49s

True Declination

51° 43' 41"

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

11:20:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,333.249 km

Perigee altitude

1,041.135 km

Semi-major axis

7,565.329 km

Eccentricity

0.01931

Inclination

99.7717°

RAAN

159.5896°

Arg. of periapsis

230.4068°

True anomaly

256.71929°

Mean anomaly

258.8795°

Eccentric anomaly

257.79833°

Mean motion

3.29839 °/min

Orbital period

109.14 mins

BSTAR

0.0019055

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

DELTA 1 DEB, 21519 (Decayed)

DELTA 1 DEB, 21378 (Decayed)

DELTA 1 DEB, 21335 (Decayed)

DELTA 1 DEB, 21440 (Decayed)

DELTA 1 DEB, 21375 (Decayed)

DELTA 1 DEB, 21451 (Decayed)

DELTA 1 DEB, 21495 (Decayed)

DELTA 1 DEB, 21509 (Decayed)

DELTA 1 DEB, 21563 (Decayed)

DELTA 1 DEB, 21539 (Decayed)

DELTA 1 DEB, 21685 (Decayed)

DELTA 1 DEB, 21510 (Decayed)

DELTA 1 DEB, 21357 (Decayed)

DELTA 1 DEB, 21389 (Decayed)

DELTA 1 DEB, 37630 (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.
6 mins	2026-08-30 20:29:56.681Z	250.634° W	2026-08-30 20:32:56.681Z	274.297° WNW	12.87°	2026-08-30 20:35:56.681Z	297.588° NW
8 mins	2026-08-31 06:07:56.681Z	55.93° ENE	2026-08-31 06:10:56.681Z	86.33° E	20.613°	2026-08-31 06:15:56.681Z	136.502° SSE
12 mins	2026-08-31 07:53:56.681Z	6.528° NNE	2026-08-31 07:59:56.681Z	270.47° WNW	41.91°	2026-08-31 08:05:56.681Z	210.551° SW
4 mins	2026-08-31 09:43:56.681Z	323.866° NNW	2026-08-31 09:45:56.681Z	306.805° NW	12.164°	2026-08-31 09:47:56.681Z	289.935° WNW
8 mins	2026-08-31 16:34:56.681Z	84.533° E	2026-08-31 16:37:56.681Z	59.097° ENE	17.395°	2026-08-31 16:42:56.681Z	17.583° NNE
13 mins	2026-08-31 18:18:56.681Z	158.567° S	2026-08-31 18:24:56.681Z	57.414° ENE	44.774°	2026-08-31 18:31:56.681Z	347.038° 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, 21464 on other resources

View DELTA 1 DEB, 21464 on Heavens-Above

View DELTA 1 DEB, 21464 on Keep Track

View DELTA 1 DEB, 21464 on Celestrak

View DELTA 1 DEB, 21464 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, 21464

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-08-30T08:15:51.324Z)

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, 21464 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago