DELTA 1 DEB, 42644

Orbit data source: Space-Track

DELTA 1 DEB, 42644 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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https://www.satcat.com/sats-embedded/42644?theme=dark&initialShowStats=false

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Identifier

42644, 1975-052MD

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: 1 week ago

TLE from 1 week ago

0 DELTA 1 DEB
1 42644U 75052MD  26059.17515603  .00000109  00000-0  35588-3 0  9991
2 42644  99.6119  20.5675 0159123  62.4678 299.2507 13.17269460240993

Epoch: 2026-02-28T04:12Z

TLE epoch observation values (Epoch: 2026-02-28T04:12:13.480Z)

Latitude

-0.00002°

Longitude

159.51029°

Altitude

1,140.494 km

Speed

7.31 km/s

True Right ascension

01h 22m 16s

True Declination

0° 00' 00"

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

22:57:15

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,312.974 km

Perigee altitude

1,072.041 km

Semi-major axis

7,570.644 km

Eccentricity

0.01591

Inclination

99.6119°

RAAN

20.5675°

Arg. of periapsis

62.4678°

True anomaly

297.64439°

Mean anomaly

299.2507°

Eccentric anomaly

298.44909°

Mean motion

3.29491 °/min

Orbital period

109.26 mins

BSTAR

0.00035588

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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.
11 mins	2026-03-06 20:43:38.755Z	145.153° SSE	2026-03-06 20:49:38.755Z	53.936° ENE	39.988°	2026-03-06 20:54:38.755Z	355.437° N
8 mins	2026-03-06 22:33:38.755Z	226.213° WSW	2026-03-06 22:37:38.755Z	270.437° WNW	20.552°	2026-03-06 22:41:38.755Z	311.842° NW
12 mins	2026-03-07 09:58:38.755Z	21.999° NNE	2026-03-07 10:03:38.755Z	82.316° E	43.042°	2026-03-07 10:10:38.755Z	186.08° SSW
8 mins	2026-03-07 11:47:38.755Z	336.72° NNW	2026-03-07 11:51:38.755Z	293.936° NW	21.086°	2026-03-07 11:55:38.755Z	256.87° W

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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, 42644 on other resources

View DELTA 1 DEB, 42644 on Heavens-Above

View DELTA 1 DEB, 42644 on Keep Track

View DELTA 1 DEB, 42644 on Celestrak

View DELTA 1 DEB, 42644 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, 42644

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 week ago

TLE from 1 week ago

TLE epoch observation values (Epoch: 2026-02-28T04:12:13.480Z)

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, 42644 on other resources

Documentation

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