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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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)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 21280U 75052R   26135.03958751  .00000036  00000-0  11163-3 0  9991
2 21280  99.3980 310.0062 0049809 277.0561 202.9932 13.56055222732812

Epoch: 2026-05-15T00:57Z

TLE epoch observation values (Epoch: 2026-05-15T00:57:00.360Z)

Latitude

58.95204°

Longitude

-101.14746°

Altitude

1,094.061 km

Speed

7.294 km/s

True Right ascension

09h 43m 31s

True Declination

58° 48' 24"

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

16:03:14

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,084.326 km

Perigee altitude

1,010.355 km

Semi-major axis

7,425.478 km

Eccentricity

0.00498

Inclination

99.398°

RAAN

310.0062°

Arg. of periapsis

277.0561°

True anomaly

202.77152°

Mean anomaly

202.9932°

Eccentric anomaly

202.88223°

Mean motion

3.39201 °/min

Orbital period

106.13 mins

BSTAR

0.00011163

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

DELTA 1 DEB, 21378 (Decayed)

DELTA 1 DEB, 21456 (Decayed)

DELTA 1 DEB, 21506

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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	2026-05-16 10:09:35.771Z	105.355° ESE	2026-05-16 10:13:35.771Z	64.431° ENE	21.145°	2026-05-16 10:18:35.771Z	13.277° NNE
10 mins	2026-05-16 11:53:35.771Z	181.224° SSW	2026-05-16 11:57:35.771Z	236.316° WSW	41.628°	2026-05-16 12:03:35.771Z	337.558° N
6 mins	2026-05-16 23:03:35.771Z	65.704° ENE	2026-05-16 23:05:35.771Z	86.214° E	16.164°	2026-05-16 23:09:35.771Z	125.801° SE
11 mins	2026-05-17 00:46:35.771Z	9.529° NNE	2026-05-17 00:51:35.771Z	260.59° W	44.03°	2026-05-17 00:57:35.771Z	202.882° SW
4 mins	2026-05-17 02:33:35.771Z	318.273° NNW	2026-05-17 02:34:35.771Z	308.631° NW	13.137°	2026-05-17 02:37:35.771Z	280.539° WNW

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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: 2026-05-15T00:57:00.360Z)

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