DELTA 1 DEB, 21568

Orbit data source: Space-Track

DELTA 1 DEB, 21568 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/21568?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21568, 1975-052HN

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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 21568U 75052HN  26182.13677604  .00000597  00000-0  70848-3 0  9995
2 21568  99.8982  31.5062 0242326  72.7905  48.8413 13.60023226729635

Epoch: 2026-07-01T03:16Z

TLE epoch observation values (Epoch: 2026-07-01T03:16:57.449Z)

Latitude

55.0807°

Longitude

-102.53381°

Altitude

928.899 km

Speed

7.45 km/s

True Right ascension

15h 03m 36s

True Declination

54° 55' 22"

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

16:59:20

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,212.492 km

Perigee altitude

853.315 km

Semi-major axis

7,411.041 km

Eccentricity

0.02423

Inclination

99.8982°

RAAN

31.5062°

Arg. of periapsis

72.7905°

True anomaly

50.97396°

Mean anomaly

48.8413°

Eccentric anomaly

49.90339°

Mean motion

3.40192 °/min

Orbital period

105.82 mins

BSTAR

0.00070848

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

DELTA 1 DEB, 21597 (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.
5 mins	2026-07-02 12:25:44.351Z	88.403° E	2026-07-02 12:27:44.351Z	64.71° ENE	15.971°	2026-07-02 12:30:44.351Z	28.331° NE
9 mins	2026-07-02 14:07:44.351Z	176.607° S	2026-07-02 14:11:44.351Z	239.483° WSW	42.388°	2026-07-02 14:16:44.351Z	337.9° N
10 mins	2026-07-03 02:57:44.351Z	16.351° NNE	2026-07-03 03:01:44.351Z	143.122° SSE	44.958°	2026-07-03 03:07:44.351Z	195.737° SSW
4 mins	2026-07-03 04:43:44.351Z	319.805° NNW	2026-07-03 04:45:44.351Z	297.582° NW	14.018°	2026-07-03 04:47:44.351Z	276.923° 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, 21568 on other resources

View DELTA 1 DEB, 21568 on Heavens-Above

View DELTA 1 DEB, 21568 on Keep Track

View DELTA 1 DEB, 21568 on Celestrak

View DELTA 1 DEB, 21568 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, 21568

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: 2026-07-01T03:16:57.449Z)

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, 21568 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago