DELTA 1 DEB, 10866

Orbit data source: Space-Track

DELTA 1 DEB, 10866 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/10866?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

10866, 1976-077CU

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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 DELTA 1 DEB
1 10866U 76077CU  26104.44057726 -.00000002  00000-0  37135-3 0  9991
2 10866 102.7243  70.0197 0148565 174.2450 308.4900 12.30634869232113

Epoch: 2026-04-14T10:34Z

TLE epoch observation values (Epoch: 2026-04-14T10:34:25.875Z)

Latitude

56.47217°

Longitude

-91.38153°

Altitude

1,483.544 km

Speed

7.159 km/s

True Right ascension

17h 59m 22s

True Declination

56° 19' 42"

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

10:31:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,661.883 km

Perigee altitude

1,426.487 km

Semi-major axis

7,922.322 km

Eccentricity

0.01486

Inclination

102.7243°

RAAN

70.0197°

Arg. of periapsis

174.245°

True anomaly

307.14203°

Mean anomaly

308.49°

Eccentric anomaly

307.81757°

Mean motion

3.07797 °/min

Orbital period

116.96 mins

BSTAR

0.00037135

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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.
15 mins	2026-04-15 09:58:14.687Z	31.423° NE	2026-04-15 10:05:14.687Z	96.911° ESE	36.439°	2026-04-15 10:13:14.687Z	174.74° S
13 mins	2026-04-15 11:54:14.687Z	358.698° N	2026-04-15 12:00:14.687Z	297.431° NW	32.085°	2026-04-15 12:07:14.687Z	237.199° WSW
9 mins	2026-04-15 19:18:14.687Z	80.07° E	2026-04-15 19:22:14.687Z	49.26° ENE	19.214°	2026-04-15 19:27:14.687Z	11.594° NNE
16 mins	2026-04-15 21:08:14.687Z	152.212° SSE	2026-04-15 21:15:14.687Z	99.098° ESE	44.399°	2026-04-15 21:24:14.687Z	343.858° N
12 mins	2026-04-15 23:05:14.687Z	222.014° SW	2026-04-15 23:11:14.687Z	267.751° W	21.473°	2026-04-15 23:17:14.687Z	312.148° 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, 10866 on other resources

View DELTA 1 DEB, 10866 on Heavens-Above

View DELTA 1 DEB, 10866 on Keep Track

View DELTA 1 DEB, 10866 on Celestrak

View DELTA 1 DEB, 10866 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, 10866

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-04-14T10:34:25.875Z)

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, 10866 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 17 hours ago