DELTA 1 DEB, 10644

Orbit data source: Space-Track

DELTA 1 DEB, 10644 is space debris in SSO originally from a launch on Thu, 29 Jul 1976 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/10644?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

10644, 1976-077E

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1976-07-29 (50 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: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 10644U 76077E   26117.17784913  .00000187  00000-0  12683-2 0  9997
2 10644 101.3724  84.9813 0107113 118.7337 261.8271 12.61813003288304

Epoch: 2026-04-27T04:16Z

TLE epoch observation values (Epoch: 2026-04-27T04:16:06.164Z)

Latitude

18.95318°

Longitude

161.84321°

Altitude

1,430.347 km

Speed

7.142 km/s

True Right ascension

05h 24m 09s

True Declination

18° 51' 25"

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

13:03:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,496.432 km

Perigee altitude

1,329.526 km

Semi-major axis

7,791.116 km

Eccentricity

0.01071

Inclination

101.3724°

RAAN

84.9813°

Arg. of periapsis

118.7337°

True anomaly

260.61454°

Mean anomaly

261.8271°

Eccentric anomaly

261.22058°

Mean motion

3.15605 °/min

Orbital period

114.07 mins

BSTAR

0.0012683

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Other satellites on launch #77 in the year 1976 (1976-07-29 UTC)

DELTA 1 DEB, 18677 (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.
14 mins	2026-04-29 10:04:05.513Z	29.97° NE	2026-04-29 10:11:05.513Z	101.693° ESE	35.863°	2026-04-29 10:18:05.513Z	171.595° S
11 mins	2026-04-29 11:58:05.513Z	353.043° N	2026-04-29 12:03:05.513Z	296.972° NW	31.102°	2026-04-29 12:09:05.513Z	238.556° WSW
14 mins	2026-04-29 20:59:05.513Z	138.642° SSE	2026-04-29 21:05:05.513Z	78.05° E	39.726°	2026-04-29 21:13:05.513Z	351.352° N
12 mins	2026-04-29 22:52:05.513Z	209.792° SW	2026-04-29 22:58:05.513Z	265.883° W	26.729°	2026-04-29 23:04:05.513Z	319.644° 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, 10644 on other resources

View DELTA 1 DEB, 10644 on Heavens-Above

View DELTA 1 DEB, 10644 on Keep Track

View DELTA 1 DEB, 10644 on Celestrak

View DELTA 1 DEB, 10644 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, 10644

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: 2026-04-27T04:16:06.164Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #77 in the year 1976 (1976-07-29 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 10644 on other resources

Documentation

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