DELTA 1 DEB, 21284

Orbit data source: Space-Track

DELTA 1 DEB, 21284 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/21284?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/21284?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21284, 1975-052V

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, 0.5 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 DELTA 1 DEB
1 21284U 75052V   26124.79516964  .00000051  00000-0  18998-3 0  9992
2 21284  99.8334 205.4484 0077979  98.2402  17.4879 13.31365904699810

Epoch: 2026-05-04T19:05Z

TLE epoch observation values (Epoch: 2026-05-04T19:05:02.656Z)

Latitude

62.41606°

Longitude

-104.21866°

Altitude

1,096.334 km

Speed

7.337 km/s

True Right ascension

02h 58m 53s

True Declination

62° 16' 52"

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

11:20:32

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,197.566 km

Perigee altitude

1,080.331 km

Semi-major axis

7,517.086 km

Eccentricity

0.0078

Inclination

99.8334°

RAAN

205.4484°

Arg. of periapsis

98.2402°

True anomaly

17.75894°

Mean anomaly

17.4879°

Eccentric anomaly

17.62317°

Mean motion

3.33019 °/min

Orbital period

108.1 mins

BSTAR

0.00018998

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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.
8 mins	2026-05-05 03:41:55.503Z	98.229° ESE	2026-05-05 03:45:55.503Z	57.94° ENE	19.25°	2026-05-05 03:49:55.503Z	17.993° NNE
11 mins	2026-05-05 05:26:55.503Z	173.997° S	2026-05-05 05:31:55.503Z	267.394° W	43.702°	2026-05-05 05:37:55.503Z	340.603° N
6 mins	2026-05-05 16:48:55.503Z	65.953° ENE	2026-05-05 16:50:55.503Z	86.74° E	17.068°	2026-05-05 16:54:55.503Z	126.861° SE
11 mins	2026-05-05 18:33:55.503Z	8.299° NNE	2026-05-05 18:38:55.503Z	259.431° W	43.333°	2026-05-05 18:44:55.503Z	205.464° SW

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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, 21284 on other resources

View DELTA 1 DEB, 21284 on Heavens-Above

View DELTA 1 DEB, 21284 on Keep Track

View DELTA 1 DEB, 21284 on Celestrak

View DELTA 1 DEB, 21284 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, 21284

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-05-04T19:05:02.656Z)

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, 21284 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago