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, 0.055 m

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history
Last TLE update: 6 days ago

TLE from 6 days ago

0 DELTA 1 DEB
1 42644U 75052MD  26296.59694303 -.00000012  00000-0  67415-4 0  9994
2 42644  99.6380 237.2941 0157239 224.4309 134.4105 13.17311887272252

Epoch: 2026-10-23T14:19Z

TLE epoch observation values (Epoch: 2026-10-23T14:19:35.877Z)

Latitude

0.00001°

Longitude

-9.6206°

Altitude

1,282.033 km

Speed

7.175 km/s

True Right ascension

15h 49m 10s

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

20:52:42

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,311.384 km

Perigee altitude

1,073.309 km

Semi-major axis

7,570.483 km

Eccentricity

0.01572

Inclination

99.638°

RAAN

237.2941°

Arg. of periapsis

224.4309°

True anomaly

135.68005°

Mean anomaly

134.4105°

Eccentric anomaly

135.04702°

Mean motion

3.29502 °/min

Orbital period

109.26 mins

BSTAR

0.000067415

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

DELTA 1 DEB, 21384

DELTA 1 DEB, 21435 (Decayed)

DELTA 1 DEB, 21382 (Decayed)

DELTA 1 DEB, 27574 (Decayed)

DELTA 1 DEB, 37630 (Decayed)

DELTA 1 DEB, 37628 (Decayed)

DELTA 1 DEB, 21379 (Decayed)

DELTA 1 DEB, 21505 (Decayed)

DELTA 1 DEB, 21454 (Decayed)

DELTA 1 DEB, 21376 (Decayed)

DELTA 1 DEB, 21440 (Decayed)

DELTA 1 DEB, 21676 (Decayed)

DELTA 1 DEB, 21683 (Decayed)

DELTA 1 DEB, 21681 (Decayed)

DELTA 1 DEB, 7965 (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.
6 mins	2026-10-30 07:24:39.503Z	59.036° ENE	2026-10-30 07:27:39.503Z	86.11° E	15.299°	2026-10-30 07:30:39.503Z	114.538° SE
12 mins	2026-10-30 09:10:39.503Z	13.123° NNE	2026-10-30 09:16:39.503Z	250.986° W	83.499°	2026-10-30 09:22:39.503Z	199.418° SSW
6 mins	2026-10-30 11:00:39.503Z	328.619° NNW	2026-10-30 11:02:39.503Z	310.097° NW	16.013°	2026-10-30 11:06:39.503Z	273.453° WNW
5 mins	2026-10-30 17:54:39.503Z	66.593° ENE	2026-10-30 17:56:39.503Z	50.205° ENE	13.412°	2026-10-30 17:59:39.503Z	26.549° NE
13 mins	2026-10-30 19:36:39.503Z	147.054° SSE	2026-10-30 19:42:39.503Z	74.527° E	64.845°	2026-10-30 19:49:39.503Z	352.294° N
10 mins	2026-10-30 21:26:39.503Z	225.656° WSW	2026-10-30 21:30:39.503Z	264.85° W	25.624°	2026-10-30 21:36:39.503Z	318.747° 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, 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: 6 days ago

TLE from 6 days ago

TLE epoch observation values (Epoch: 2026-10-23T14:19:35.877Z)

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: 6 days ago