DELTA 1 DEB, 21280

Orbit data source: Space-Track

DELTA 1 DEB, 21280 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/21280?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21280, 1975-052R

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 21280U 75052R   25355.48677352  .00000049  00000-0  12986-3 0  9996
2 21280  99.3846 172.2759 0050176 283.3614 133.0042 13.56022009713229

Epoch: 2025-12-21T11:40Z

TLE epoch observation values (Epoch: 2025-12-21T11:40:57.232Z)

Latitude

55.72783°

Longitude

-107.22379°

Altitude

1,084.899 km

Speed

7.302 km/s

True Right ascension

10h 33m 15s

True Declination

55° 34' 29"

Sunlit

Object was in partial 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

16:43:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,084.72 km

Perigee altitude

1,010.203 km

Semi-major axis

7,425.599 km

Eccentricity

0.00502

Inclination

99.3846°

RAAN

172.2759°

Arg. of periapsis

283.3614°

True anomaly

133.42289°

Mean anomaly

133.0042°

Eccentric anomaly

133.21372°

Mean motion

3.39192 °/min

Orbital period

106.13 mins

BSTAR

0.00012986

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

DELTA 1 DEB, 21597 (Decayed)

DELTA 1 DEB, 21508 (Decayed)

DELTA 1 DEB, 21321 (Decayed)

DELTA 1 DEB, 21344 (Decayed)

DELTA 1 DEB, 21679 (Decayed)

DELTA 1 DEB, 21681 (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.
8 mins	2025-12-22 23:27:37.593Z	54.045° ENE	2025-12-22 23:31:37.593Z	95.449° ESE	18.155°	2025-12-22 23:35:37.593Z	134.068° SE
11 mins	2025-12-23 01:11:37.593Z	6.954° NNE	2025-12-23 01:16:37.593Z	281.125° WNW	43.063°	2025-12-23 01:22:37.593Z	206.988° SW
11 mins	2025-12-23 11:20:37.593Z	140.041° SSE	2025-12-23 11:25:37.593Z	61.546° ENE	38.928°	2025-12-23 11:31:37.593Z	355.142° N
9 mins	2025-12-23 13:06:37.593Z	222.757° SW	2025-12-23 13:10:37.593Z	269.544° W	22.851°	2025-12-23 13:15:37.593Z	319.64° 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, 21280 on other resources

View DELTA 1 DEB, 21280 on Heavens-Above

View DELTA 1 DEB, 21280 on Keep Track

View DELTA 1 DEB, 21280 on Celestrak

View DELTA 1 DEB, 21280 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, 21280

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: 2025-12-21T11:40:57.232Z)

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, 21280 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago