DELTA 1 DEB, 10661

Orbit data source: Space-Track

DELTA 1 DEB, 10661 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/10661?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

10661, 1976-077X

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: 22 hours ago

TLE from 22 hours ago

0 DELTA 1 DEB
1 10661U 76077X   26106.44975907 -.00002891  00000-0 -52619-2 0  9998
2 10661 101.1860  75.5870 0110740 183.2755 301.6378 13.37127587326541

Epoch: 2026-04-16T10:47Z

TLE epoch observation values (Epoch: 2026-04-16T10:47:39.183Z)

Latitude

54.68231°

Longitude

-94.80175°

Altitude

1,085.987 km

Speed

7.335 km/s

True Right ascension

18h 06m 50s

True Declination

54° 31' 37"

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

15:58:12

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,200.403 km

Perigee altitude

1,034.392 km

Semi-major axis

7,495.535 km

Eccentricity

0.01107

Inclination

101.186°

RAAN

75.587°

Arg. of periapsis

183.2755°

True anomaly

300.54957°

Mean anomaly

301.6378°

Eccentric anomaly

301.09447°

Mean motion

3.34456 °/min

Orbital period

107.64 mins

BSTAR

-0.0052619

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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.
11 mins	2026-04-17 10:07:35.713Z	32.696° NE	2026-04-17 10:13:35.713Z	101.537° ESE	31.932°	2026-04-17 10:18:35.713Z	163.516° S
10 mins	2026-04-17 11:54:35.713Z	355.35° N	2026-04-17 11:59:35.713Z	292.943° NW	30.115°	2026-04-17 12:04:35.713Z	236.24° WSW
9 mins	2026-04-17 20:27:35.713Z	105.519° ESE	2026-04-17 20:31:35.713Z	61.036° ENE	25.717°	2026-04-17 20:36:35.713Z	8.553° NNE
12 mins	2026-04-17 22:11:35.713Z	182.448° SSW	2026-04-17 22:17:35.713Z	270.734° WNW	39.724°	2026-04-17 22:23:35.713Z	333.895° 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, 10661 on other resources

View DELTA 1 DEB, 10661 on Heavens-Above

View DELTA 1 DEB, 10661 on Keep Track

View DELTA 1 DEB, 10661 on Celestrak

View DELTA 1 DEB, 10661 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, 10661

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-04-16T10:47:39.183Z)

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, 10661 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago