DELTA 1 DEB, 13538

Orbit data source: Space-Track

DELTA 1 DEB, 13538 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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https://www.satcat.com/sats-embedded/13538?theme=dark&initialShowStats=false

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Identifier

13538, 1976-077EL

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: 17 hours ago

TLE from 17 hours ago

0 DELTA 1 DEB
1 13538U 76077EL  26104.47072954  .00000026  00000-0  63650-3 0  9999
2 13538 102.0238  94.1124 0106806 207.3732 306.6600 12.22128876 38308

Epoch: 2026-04-14T11:17Z

TLE epoch observation values (Epoch: 2026-04-14T11:17:51.032Z)

Latitude

26.3534°

Longitude

-91.96963°

Altitude

1,535.963 km

Speed

7.123 km/s

True Right ascension

18h 40m 33s

True Declination

26° 13' 49"

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

10:31:21

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,665.889 km

Perigee altitude

1,495.875 km

Semi-major axis

7,959.019 km

Eccentricity

0.01068

Inclination

102.0238°

RAAN

94.1124°

Arg. of periapsis

207.3732°

True anomaly

305.67035°

Mean anomaly

306.66°

Eccentric anomaly

306.16596°

Mean motion

3.05671 °/min

Orbital period

117.77 mins

BSTAR

0.0006365

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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	2026-04-15 10:42:30.288Z	43.981° NE	2026-04-15 10:48:30.288Z	88.751° E	22.1°	2026-04-15 10:55:30.288Z	143.805° SSE
16 mins	2026-04-15 12:37:30.288Z	13.252° NNE	2026-04-15 12:45:30.288Z	279.912° WNW	43.718°	2026-04-15 12:53:30.288Z	209.888° SW
8 mins	2026-04-15 14:35:30.288Z	341.331° N	2026-04-15 14:39:30.288Z	311.123° NW	16.888°	2026-04-15 14:43:30.288Z	281.406° WNW
15 mins	2026-04-15 21:57:30.288Z	123.39° SE	2026-04-15 22:04:30.288Z	57.557° ENE	35.183°	2026-04-15 22:12:30.288Z	354.221° N
15 mins	2026-04-15 23:52:30.288Z	192.341° SSW	2026-04-15 23:59:30.288Z	256.327° W	36.18°	2026-04-16 00:07:30.288Z	328.474° 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, 13538 on other resources

View DELTA 1 DEB, 13538 on Heavens-Above

View DELTA 1 DEB, 13538 on Keep Track

View DELTA 1 DEB, 13538 on Celestrak

View DELTA 1 DEB, 13538 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, 13538

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: 2026-04-14T11:17:51.032Z)

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, 13538 on other resources

Documentation

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