DELTA 1 DEB, 21271

Orbit data source: Space-Track

DELTA 1 DEB, 21271 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/21271?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/21271?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21271, 1975-052G

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 (50 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

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 DELTA 1 DEB
1 21271U 75052G   25316.10494044 -.00000386  00000-0 -97836-3 0  9990
2 21271  99.5858   4.8781 0242999  92.2465 298.4965 13.02469762639551

Epoch: 2025-11-12T02:31Z

TLE epoch observation values (Epoch: 2025-11-12T02:31:06.854Z)

Latitude

27.87287°

Longitude

-89.4805°

Altitude

1,170.754 km

Speed

7.311 km/s

True Right ascension

23h 59m 07s

True Declination

27° 44' 20"

Sunlit

Object was in full 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

13:47:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,435.144 km

Perigee altitude

1,064.428 km

Semi-major axis

7,627.923 km

Eccentricity

0.0243

Inclination

99.5858°

RAAN

4.8781°

Arg. of periapsis

92.2465°

True anomaly

296.01411°

Mean anomaly

298.4965°

Eccentric anomaly

297.25884°

Mean motion

3.25787 °/min

Orbital period

110.5 mins

BSTAR

-0.00097836

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

DELTA 1 DEB, 21440 (Decayed)

DELTA 1 DEB, 42660 (Decayed)

DELTA 1 DEB, 21600 (Decayed)

DELTA 1 DEB, 21381 (Decayed)

DELTA 1 DEB, 21474 (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.
10 mins	2025-11-12 17:42:19.816Z	347.528° N	2025-11-12 17:47:19.816Z	295.006° NW	22.703°	2025-11-12 17:52:19.816Z	247.415° WSW
11 mins	2025-11-13 02:28:19.816Z	130.962° SE	2025-11-13 02:33:19.816Z	73.999° E	33.773°	2025-11-13 02:39:19.816Z	0.829° NNE
10 mins	2025-11-13 04:18:19.816Z	210.98° SW	2025-11-13 04:22:19.816Z	257.712° W	28.325°	2025-11-13 04:28:19.816Z	324.516° NNW
12 mins	2025-11-13 15:51:19.816Z	27.117° NE	2025-11-13 15:56:19.816Z	95.031° ESE	39.793°	2025-11-13 16:03:19.816Z	179.175° S

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, 21271 on other resources

View DELTA 1 DEB, 21271 on Heavens-Above

View DELTA 1 DEB, 21271 on Keep Track

View DELTA 1 DEB, 21271 on Celestrak

View DELTA 1 DEB, 21271 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, 21271

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2025-11-12T02:31:06.854Z)

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, 21271 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago