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 URL

https://www.satcat.com/sats-embedded/21284?theme=dark&initialShowStats=false

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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: 20 hours ago

TLE from 20 hours ago

0 DELTA 1 DEB
1 21284U 75052V   25348.81404972  .00000066  00000-0  22261-3 0  9991
2 21284  99.8504  70.6515 0077323  75.4073  34.6077 13.31332554681053

Epoch: 2025-12-14T19:32Z

TLE epoch observation values (Epoch: 2025-12-14T19:32:13.895Z)

Latitude

67.41044°

Longitude

-101.59552°

Altitude

1,105.596 km

Speed

7.329 km/s

True Right ascension

18h 20m 44s

True Declination

67° 17' 38"

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

13:42:29

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,197.2 km

Perigee altitude

1,080.95 km

Semi-major axis

7,517.212 km

Eccentricity

0.00773

Inclination

99.8504°

RAAN

70.6515°

Arg. of periapsis

75.4073°

True anomaly

35.11497°

Mean anomaly

34.6077°

Eccentric anomaly

34.86093°

Mean motion

3.33011 °/min

Orbital period

108.1 mins

BSTAR

0.00022261

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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, 21672 (Decayed)

DELTA 1 DEB, 21521 (Decayed)

DELTA 1 DEB, 21679 (Decayed)

DELTA 1 DEB, 21562 (Decayed)

DELTA 1 DEB, 21517 (Decayed)

DELTA 1 DEB, 21505 (Decayed)

DELTA 1 DEB, 37628 (Decayed)

DELTA 1 DEB, 21564 (Decayed)

DELTA 1 DEB, 21378 (Decayed)

DELTA 1 DEB, 21322 (Decayed)

DELTA 1 DEB, 21539 (Decayed)

DELTA 1 DEB, 21375 (Decayed)

DELTA 1 DEB, 21346 (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.
9 mins	2025-12-15 17:15:52.206Z	48.493° ENE	2025-12-15 17:19:52.206Z	89.2° E	21.259°	2025-12-15 17:24:52.206Z	140.467° SSE
11 mins	2025-12-15 19:01:52.206Z	4.882° NNE	2025-12-15 19:06:52.206Z	301.988° NW	40.793°	2025-12-15 19:12:52.206Z	214.283° SW
5 mins	2025-12-16 03:39:52.206Z	76.711° E	2025-12-16 03:41:52.206Z	57.674° ENE	13.779°	2025-12-16 03:44:52.206Z	29.162° NE
11 mins	2025-12-16 05:22:52.206Z	157.842° S	2025-12-16 05:27:52.206Z	53.442° ENE	44.616°	2025-12-16 05:33:52.206Z	347.391° N
5 mins	2025-12-16 07:12:52.206Z	248.193° W	2025-12-16 07:14:52.206Z	268.146° W	14.986°	2025-12-16 07:17:52.206Z	297.443° NW

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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: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2025-12-14T19:32:13.895Z)

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: 20 hours ago