DELTA 1 DEB, 21910

Orbit data source: Space-Track

DELTA 1 DEB, 21910 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/21910?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21910, 1975-052JR

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)

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Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 21910U 75052JR  26124.94247712  .00000201  00000-0  80721-3 0  9997
2 21910  99.6346 125.7483 0330019 117.2659 276.1320 12.80839567618486

Epoch: 2026-05-04T22:37Z

TLE epoch observation values (Epoch: 2026-05-04T22:37:10.023Z)

Latitude

29.21114°

Longitude

-81.78724°

Altitude

1,322.689 km

Speed

7.207 km/s

True Right ascension

08h 01m 18s

True Declination

29° 04' 32"

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

18:16:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,590.048 km

Perigee altitude

1,080.919 km

Semi-major axis

7,713.62 km

Eccentricity

0.033

Inclination

99.6346°

RAAN

125.7483°

Arg. of periapsis

117.2659°

True anomaly

272.35799°

Mean anomaly

276.132°

Eccentric anomaly

274.24632°

Mean motion

3.20373 °/min

Orbital period

112.37 mins

BSTAR

0.00080721

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

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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.
11 mins	2026-05-07 12:56:35.831Z	15.607° NNE	2026-05-07 13:01:35.831Z	96.746° ESE	44.977°	2026-05-07 13:07:35.831Z	195.366° SSW
5 mins	2026-05-07 14:49:35.831Z	323.488° NNW	2026-05-07 14:51:35.831Z	303.167° NW	14.967°	2026-05-07 14:54:35.831Z	274.505° WNW
5 mins	2026-05-07 21:55:35.831Z	73.369° E	2026-05-07 21:57:35.831Z	55.62° ENE	13.837°	2026-05-07 22:00:35.831Z	29.037° NE
12 mins	2026-05-07 23:41:35.831Z	155.981° SSE	2026-05-07 23:47:35.831Z	55.497° ENE	44.305°	2026-05-07 23:53:35.831Z	348.859° N
7 mins	2026-05-08 01:35:35.831Z	239.65° WSW	2026-05-08 01:38:35.831Z	267.025° W	17.357°	2026-05-08 01:42:35.831Z	303.767° NW

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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, 21910 on other resources

View DELTA 1 DEB, 21910 on Heavens-Above

View DELTA 1 DEB, 21910 on Keep Track

View DELTA 1 DEB, 21910 on Celestrak

View DELTA 1 DEB, 21910 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, 21910

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-05-04T22:37:10.023Z)

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, 21910 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago