DELTA 1 DEB, 21497

Orbit data source: Space-Track

DELTA 1 DEB, 21497 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/21497?theme=dark&initialShowStats=false

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Identifier

21497, 1975-052FS

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: 10 hours ago

TLE from 10 hours ago

0 DELTA 1 DEB
1 21497U 75052FS  26065.39374472  .00000024  00000-0  13805-3 0  9996
2 21497 100.0257 356.7811 0058153 250.6663 229.5947 13.32981439694304

Epoch: 2026-03-06T09:26Z

TLE epoch observation values (Epoch: 2026-03-06T09:26:59.543Z)

Latitude

58.84198°

Longitude

-112.1847°

Altitude

1,173.864 km

Speed

7.258 km/s

True Right ascension

12h 54m 46s

True Declination

58° 41' 52"

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

22:58:37

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,176.558 km

Perigee altitude

1,089.201 km

Semi-major axis

7,511.016 km

Eccentricity

0.00582

Inclination

100.0257°

RAAN

356.7811°

Arg. of periapsis

250.6663°

True anomaly

229.08965°

Mean anomaly

229.5947°

Eccentric anomaly

229.34194°

Mean motion

3.33423 °/min

Orbital period

107.97 mins

BSTAR

0.00013805

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

DELTA 1 DEB, 21369 (Decayed)

DELTA 1 DEB, 37629 (Decayed)

DELTA 1 DEB, 21451 (Decayed)

DELTA 1 DEB, 21447 (Decayed)

DELTA 1 DEB, 42660 (Decayed)

DELTA 1 DEB, 21295

DELTA 1 DEB, 26826

DELTA 1 DEB, 21330

DELTA 1 DEB, 27574 (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.
12 mins	2026-03-06 19:45:00.109Z	185.128° SSW	2026-03-06 19:51:00.109Z	258.367° W	38.69°	2026-03-06 19:57:00.109Z	332.889° NNW
10 mins	2026-03-07 07:06:00.109Z	45.19° ENE	2026-03-07 07:11:00.109Z	99.09° ESE	24.041°	2026-03-07 07:16:00.109Z	148.171° SSE
11 mins	2026-03-07 08:52:00.109Z	2.857° NNE	2026-03-07 08:57:00.109Z	303.266° NW	39.024°	2026-03-07 09:03:00.109Z	219.095° SW
7 mins	2026-03-07 17:28:00.109Z	85.173° E	2026-03-07 17:31:00.109Z	56.773° ENE	16.894°	2026-03-07 17:35:00.109Z	20.21° NNE

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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, 21497 on other resources

View DELTA 1 DEB, 21497 on Heavens-Above

View DELTA 1 DEB, 21497 on Keep Track

View DELTA 1 DEB, 21497 on Celestrak

View DELTA 1 DEB, 21497 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, 21497

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-03-06T09:26:59.543Z)

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, 21497 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago