**DELTA 1 DEB *, 18599**

Orbit data source: Space-Track

DELTA 1 DEB *, 18599 is space debris in LEO 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 src="https://www.satcat.com/sats-embedded/18599?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/18599?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18599, 1976-077FE

Orbit

LEO

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: 6 hours ago

TLE from 6 hours ago

0 DELTA 1 DEB *
1 18599U 76077FE  26104.97446941  .00002764  00000-0  15718-1 0  9998
2 18599 100.9126 291.9338 0743277 103.9168  46.2317 11.98897739773660

Epoch: 2026-04-14T23:23Z

TLE epoch observation values (Epoch: 2026-04-14T23:23:14.157Z)

Latitude

22.86861°

Longitude

-77.37758°

Altitude

1,298.662 km

Speed

7.381 km/s

True Right ascension

07h 46m 17s

True Declination

22° 45' 16"

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

12:25:35

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,282.539 km

Perigee altitude

1,084.156 km

Semi-major axis

8,061.484 km

Eccentricity

0.07433

Inclination

100.9126°

RAAN

291.9338°

Arg. of periapsis

103.9168°

True anomaly

52.78917°

Mean anomaly

46.2317°

Eccentric anomaly

49.46849°

Mean motion

2.99861 °/min

Orbital period

120.06 mins

BSTAR

0.015718

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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	2026-04-15 10:45:25.925Z	114.397° SE	2026-04-15 10:52:25.925Z	55.965° ENE	24.44°	2026-04-15 10:57:25.925Z	8.661° NNE
14 mins	2026-04-15 12:42:25.925Z	179.72° S	2026-04-15 12:49:25.925Z	245.249° WSW	40.522°	2026-04-15 12:56:25.925Z	334.295° NNW
12 mins	2026-04-16 01:15:25.925Z	22.031° NNE	2026-04-16 01:20:25.925Z	124.31° SE	44.075°	2026-04-16 01:27:25.925Z	191.654° SSW
6 mins	2026-04-16 03:15:25.925Z	327.548° NNW	2026-04-16 03:17:25.925Z	306.678° NW	16.777°	2026-04-16 03:21:25.925Z	268.819° W

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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 *, 18599 on other resources

View DELTA 1 DEB *, 18599 on Heavens-Above

View DELTA 1 DEB *, 18599 on Keep Track

View DELTA 1 DEB *, 18599 on Celestrak

View DELTA 1 DEB *, 18599 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 *, 18599

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-04-14T23:23:14.157Z)

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 *, 18599 on other resources

Documentation

**DELTA 1 DEB *, 18599**

Expand to show TLE details & history
Last TLE update: 6 hours ago