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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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  26019.80610543  .00000593  00000-0  34419-2 0  9993
2 10721 101.7870 325.5972 0053584 305.3288  82.2464 12.64765546269553

Epoch: 2026-01-19T19:20Z

TLE epoch observation values (Epoch: 2026-01-19T19:20:47.509Z)

Latitude

27.57865°

Longitude

-90.02401°

Altitude

1,401.03 km

Speed

7.164 km/s

True Right ascension

21h 17m 29s

True Declination

27° 26' 58"

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

02:14:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,442.549 km

Perigee altitude

1,359.183 km

Semi-major axis

7,779.003 km

Eccentricity

0.00536

Inclination

101.787°

RAAN

325.5972°

Arg. of periapsis

305.3288°

True anomaly

82.85535°

Mean anomaly

82.2464°

Eccentric anomaly

82.55082°

Mean motion

3.16342 °/min

Orbital period

113.8 mins

BSTAR

0.0034419

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

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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.
12 mins	2026-01-21 07:55:32.897Z	44.5° NE	2026-01-21 08:01:32.897Z	97.242° ESE	24.883°	2026-01-21 08:07:32.897Z	148.215° SSE
15 mins	2026-01-21 09:46:32.897Z	9.986° NNE	2026-01-21 09:53:32.897Z	295.207° NW	42.029°	2026-01-21 10:01:32.897Z	214.575° SW
6 mins	2026-01-21 11:41:32.897Z	330.684° NNW	2026-01-21 11:43:32.897Z	315.077° NNW	14.225°	2026-01-21 11:47:32.897Z	285.068° WNW
12 mins	2026-01-21 18:48:32.897Z	114.933° SE	2026-01-21 18:54:32.897Z	55.187° ENE	29.898°	2026-01-21 19:00:32.897Z	1.428° NNE
14 mins	2026-01-21 20:39:32.897Z	186.413° SSW	2026-01-21 20:45:32.897Z	253.884° W	38.669°	2026-01-21 20:53:32.897Z	333.34° 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, 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: 2026-01-19T19:20:47.509Z)

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