DELTA 1 DEB, 10840

Orbit data source: Space-Track

DELTA 1 DEB, 10840 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/10840?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

10840, 1976-077CL

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, 0.3 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 19 hours ago

TLE from 19 hours ago

0 DELTA 1 DEB
1 10840U 76077CL  26073.20496106  .00000024  00000-0  67830-3 0  9999
2 10840 102.6210 172.8076 0142312 197.9766 235.0126 12.16052195203394

Epoch: 2026-03-14T04:55Z

TLE epoch observation values (Epoch: 2026-03-14T04:55:08.635Z)

Latitude

67.94446°

Longitude

-106.17588°

Altitude

1,687.601 km

Speed

7.008 km/s

True Right ascension

09h 17m 45s

True Declination

67° 50' 18"

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

04:50:47

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,721.07 km

Perigee altitude

1,493.781 km

Semi-major axis

7,985.563 km

Eccentricity

0.01423

Inclination

102.621°

RAAN

172.8076°

Arg. of periapsis

197.9766°

True anomaly

233.69015°

Mean anomaly

235.0126°

Eccentric anomaly

234.35002°

Mean motion

3.04148 °/min

Orbital period

118.36 mins

BSTAR

0.0006783

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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.
13 mins	2026-03-15 04:23:45.148Z	96.388° ESE	2026-03-15 04:29:45.148Z	52.881° ENE	23.207°	2026-03-15 04:36:45.148Z	2.643° NNE
17 mins	2026-03-15 06:16:45.148Z	160.875° S	2026-03-15 06:24:45.148Z	232.939° WSW	44.955°	2026-03-15 06:33:45.148Z	340.939° N
11 mins	2026-03-15 08:16:45.148Z	232.863° WSW	2026-03-15 08:21:45.148Z	267.552° W	17.955°	2026-03-15 08:27:45.148Z	308.353° NW
15 mins	2026-03-15 18:41:45.148Z	34.218° NE	2026-03-15 18:48:45.148Z	96.231° ESE	34.145°	2026-03-15 18:56:45.148Z	168.959° S
14 mins	2026-03-15 20:38:45.148Z	1.824° NNE	2026-03-15 20:44:45.148Z	304.361° NW	35.309°	2026-03-15 20:52:45.148Z	231.81° WSW

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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, 10840 on other resources

View DELTA 1 DEB, 10840 on Heavens-Above

View DELTA 1 DEB, 10840 on Keep Track

View DELTA 1 DEB, 10840 on Celestrak

View DELTA 1 DEB, 10840 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, 10840

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 19 hours ago

TLE from 19 hours ago

TLE epoch observation values (Epoch: 2026-03-14T04:55:08.635Z)

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, 10840 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 19 hours ago