DELTA 1 DEB, 13533

Orbit data source: Space-Track

DELTA 1 DEB, 13533 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 URL

https://www.satcat.com/sats-embedded/13533?theme=dark&initialShowStats=false

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Identifier

13533, 1976-077EF

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, 1.1 m

Radar Cross Section

Small (<0.1 m²)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 13533U 76077EF  26077.88692980  .00000014  00000-0  68691-3 0  9992
2 13533 101.8584  51.3549 0362078  62.9143 356.7650 11.74567274 24712

Epoch: 2026-03-18T21:17Z

TLE epoch observation values (Epoch: 2026-03-18T21:17:10.734Z)

Latitude

57.51644°

Longitude

-103.54243°

Altitude

1,510.682 km

Speed

7.242 km/s

True Right ascension

02h 08m 47s

True Declination

57° 22' 31"

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

03:23:28

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,090.337 km

Perigee altitude

1,498.516 km

Semi-major axis

8,172.563 km

Eccentricity

0.03621

Inclination

101.8584°

RAAN

51.3549°

Arg. of periapsis

62.9143°

True anomaly

356.5198°

Mean anomaly

356.765°

Eccentric anomaly

356.64354°

Mean motion

2.93769 °/min

Orbital period

122.55 mins

BSTAR

0.00068691

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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	2026-03-19 23:39:01.430Z	224.724° SW	2026-03-19 23:44:01.430Z	263.276° W	19.845°	2026-03-19 23:50:01.430Z	311.021° NW
17 mins	2026-03-20 10:24:01.430Z	31.501° NE	2026-03-20 10:31:01.430Z	96.348° ESE	38.132°	2026-03-20 10:41:01.430Z	176.755° S
15 mins	2026-03-20 12:25:01.430Z	357.384° N	2026-03-20 12:31:01.430Z	303.113° NW	32.743°	2026-03-20 12:40:01.430Z	235.742° WSW
11 mins	2026-03-20 20:10:01.430Z	95.89° ESE	2026-03-20 20:15:01.430Z	53.554° ENE	22.543°	2026-03-20 20:21:01.430Z	5.721° NNE
15 mins	2026-03-20 22:07:01.430Z	169.286° S	2026-03-20 22:14:01.430Z	228.013° WSW	43.789°	2026-03-20 22:22:01.430Z	338.521° N

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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, 13533 on other resources

View DELTA 1 DEB, 13533 on Heavens-Above

View DELTA 1 DEB, 13533 on Keep Track

View DELTA 1 DEB, 13533 on Celestrak

View DELTA 1 DEB, 13533 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, 13533

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-03-18T21:17:10.734Z)

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, 13533 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago