DELTA 1 DEB, 13529

Orbit data source: Space-Track

DELTA 1 DEB, 13529 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/13529?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/13529?theme=dark&initialShowStats=false

Optional secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

13529, 1976-077EB

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

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 13529U 76077EB  26254.60038370 -.00000005  00000-0  47963-3 0  9991
2 13529 101.8480 304.4477 0381139 222.8524 298.4914 11.66126160951959

Epoch: 2026-09-11T14:24Z

TLE epoch observation values (Epoch: 2026-09-11T14:24:33.151Z)

Latitude

22.08913°

Longitude

-77.45133°

Altitude

1,698.569 km

Speed

7.088 km/s

True Right ascension

08h 37m 13s

True Declination

21° 59' 01"

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

02:29:15

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,146.83 km

Perigee altitude

1,520.849 km

Semi-major axis

8,211.976 km

Eccentricity

0.03811

Inclination

101.848°

RAAN

304.4477°

Arg. of periapsis

222.8524°

True anomaly

294.56672°

Mean anomaly

298.4914°

Eccentric anomaly

296.53771°

Mean motion

2.91656 °/min

Orbital period

123.43 mins

BSTAR

0.00047963

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

Other satellites on launch #77 in the year 1976 (1976-07-29 UTC)

DELTA 1 R/B, 9063

DELTA 1 DEB, 10651 (Decayed)

Did you know?

You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

Click here to try in Sandbox

DELTA 1 DEB Visibility forecast

Loading observer location...
Set Observer location

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.
18 mins	2026-09-13 15:34:04.736Z	25.879° NE	2026-09-13 15:44:04.736Z	101.436° ESE	50.649°	2026-09-13 15:52:04.736Z	172.073° S
16 mins	2026-09-13 17:37:04.736Z	2.212° NNE	2026-09-13 17:45:04.736Z	297.095° NW	42.164°	2026-09-13 17:53:04.736Z	236.418° WSW
17 mins	2026-09-14 01:21:04.736Z	104.914° ESE	2026-09-14 01:29:04.736Z	54.414° ENE	32.706°	2026-09-14 01:38:04.736Z	358.571° N
21 mins	2026-09-14 03:19:04.736Z	167.061° S	2026-09-14 03:29:04.736Z	259.878° W	79.041°	2026-09-14 03:40:04.736Z	340.44° N
13 mins	2026-09-14 05:25:04.736Z	236.545° WSW	2026-09-14 05:31:04.736Z	270.467° WNW	18.769°	2026-09-14 05:38:04.736Z	309.764° NW

Items per page:

1–5 of 5 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign in to view Co-orbital & Co-planar RSOs.

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in descending order

Check out DELTA 1 DEB, 13529 on other resources

View DELTA 1 DEB, 13529 on Heavens-Above

View DELTA 1 DEB, 13529 on Keep Track

View DELTA 1 DEB, 13529 on Celestrak

View DELTA 1 DEB, 13529 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, 13529

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-09-11T14:24:33.151Z)

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, 13529 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago