DELTA 1 DEB, 10721

Orbit data source: Space-Track

DELTA 1 DEB, 10721 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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Iframe URL

https://www.satcat.com/sats-embedded/10721?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

10721, 1976-077AS

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 (49 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 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 10721U 76077AS  25338.77772756  .00000921  00000-0  52039-2 0  9990
2 10721 101.7871 278.9339 0053406  25.2233  44.4804 12.64688965263734

Epoch: 2025-12-04T18:39Z

TLE epoch observation values (Epoch: 2025-12-04T18:39:55.661Z)

Latitude

67.10474°

Longitude

-104.32763°

Altitude

1,385.543 km

Speed

7.186 km/s

True Right ascension

16h 37m 56s

True Declination

66° 59' 28"

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

20:05:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,442.726 km

Perigee altitude

1,359.634 km

Semi-major axis

7,779.317 km

Eccentricity

0.00534

Inclination

101.7871°

RAAN

278.9339°

Arg. of periapsis

25.2233°

True anomaly

44.91125°

Mean anomaly

44.4804°

Eccentric anomaly

44.69562°

Mean motion

3.16323 °/min

Orbital period

113.81 mins

BSTAR

0.0052039

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

DELTA 1 DEB, 40767

DELTA 1 DEB, 18677 (Decayed)

DELTA 1 DEB *, 18466 (Decayed)

DELTA 1 DEB, 40753

DELTA 1 DEB, 19858 (Decayed)

DELTA 1 DEB, 10753 (Decayed)

DELTA 1 DEB, 16999 (Decayed)

DELTA 1 DEB, 10705 (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.
15 mins	2025-12-06 08:53:24.882Z	23.816° NE	2025-12-06 09:00:24.882Z	111.196° ESE	43.075°	2025-12-06 09:08:24.882Z	188.565° SSW
11 mins	2025-12-06 10:46:24.882Z	349.744° N	2025-12-06 10:51:24.882Z	303.728° NW	24.914°	2025-12-06 10:57:24.882Z	252.63° W
8 mins	2025-12-06 17:58:24.882Z	80.94° E	2025-12-06 18:02:24.882Z	46.784° ENE	17.079°	2025-12-06 18:06:24.882Z	14.814° NNE
14 mins	2025-12-06 19:46:24.882Z	154.918° SSE	2025-12-06 19:52:24.882Z	93.125° ESE	44.607°	2025-12-06 20:00:24.882Z	344.701° N
9 mins	2025-12-06 21:41:24.882Z	234.527° WSW	2025-12-06 21:45:24.882Z	269.571° W	18.084°	2025-12-06 21:50:24.882Z	309.777° 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, 10721 on other resources

View DELTA 1 DEB, 10721 on Heavens-Above

View DELTA 1 DEB, 10721 on Keep Track

View DELTA 1 DEB, 10721 on Celestrak

View DELTA 1 DEB, 10721 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, 10721

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: 2025-12-04T18:39:55.661Z)

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, 10721 on other resources

Documentation

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