DELTA 1 DEB, 21471

Orbit data source: Space-Track

DELTA 1 DEB, 21471 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/21471?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21471, 1975-052FF

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, 0.1 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 21471U 75052FF  26045.94546618  .00000366  00000-0  47230-3 0  9998
2 21471  99.9337 201.3651 0247991 295.6208 219.1233 13.57576736719861

Epoch: 2026-02-14T22:41Z

TLE epoch observation values (Epoch: 2026-02-14T22:41:28.277Z)

Latitude

26.60465°

Longitude

-98.95704°

Altitude

1,192.234 km

Speed

7.189 km/s

True Right ascension

01h 45m 29s

True Declination

26° 28' 30"

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

16:42:36

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,225.821 km

Perigee altitude

857.805 km

Semi-major axis

7,419.95 km

Eccentricity

0.0248

Inclination

99.9337°

RAAN

201.3651°

Arg. of periapsis

295.6208°

True anomaly

217.37259°

Mean anomaly

219.1233°

Eccentric anomaly

218.24376°

Mean motion

3.3958 °/min

Orbital period

106.01 mins

BSTAR

0.0004723

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

DELTA 1 DEB, 35533 (Decayed)

DELTA 1 DEB, 21676 (Decayed)

DELTA 1 DEB, 21600 (Decayed)

DELTA 1 DEB, 21503 (Decayed)

DELTA 1 DEB, 21683 (Decayed)

DELTA 1 DEB, 37627 (Decayed)

DELTA 1 DEB, 21563 (Decayed)

DELTA 1 DEB, 21274 (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	2026-02-15 21:33:42.991Z	54.324° ENE	2026-02-15 21:37:42.991Z	89.29° E	16.295°	2026-02-15 21:41:42.991Z	124.987° SE
13 mins	2026-02-15 23:16:42.991Z	14.025° NNE	2026-02-15 23:22:42.991Z	345.402° N	44.774°	2026-02-15 23:29:42.991Z	199.108° SSW
7 mins	2026-02-16 01:03:42.991Z	330.778° NNW	2026-02-16 01:06:42.991Z	302.299° NW	17.322°	2026-02-16 01:10:42.991Z	267.426° W
11 mins	2026-02-16 09:25:42.991Z	130.92° SE	2026-02-16 09:30:42.991Z	58.194° ENE	35.468°	2026-02-16 09:36:42.991Z	357.175° N
10 mins	2026-02-16 11:10:42.991Z	211.57° SW	2026-02-16 11:14:42.991Z	259.376° W	27.382°	2026-02-16 11:20:42.991Z	323.974° 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, 21471 on other resources

View DELTA 1 DEB, 21471 on Heavens-Above

View DELTA 1 DEB, 21471 on Keep Track

View DELTA 1 DEB, 21471 on Celestrak

View DELTA 1 DEB, 21471 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, 21471

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: 2026-02-14T22:41:28.277Z)

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, 21471 on other resources

Documentation

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