DELTA 1 DEB, 12535

Orbit data source: Space-Track

DELTA 1 DEB, 12535 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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https://www.satcat.com/sats-embedded/12535?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12535, 1976-077DQ

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)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 DELTA 1 DEB
1 12535U 76077DQ  26255.29217223  .00000063  00000-0  15058-2 0  9991
2 12535 102.3345 188.3100 0402874  47.3744 102.9083 11.66375430 72807

Epoch: 2026-09-12T07:00Z

TLE epoch observation values (Epoch: 2026-09-12T07:00:43.680Z)

Latitude

24.67479°

Longitude

-82.43662°

Altitude

1,923.996 km

Speed

6.896 km/s

True Right ascension

00h 56m 11s

True Declination

24° 33' 46"

Sunlit

Object was in full shadow 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

03:06:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,163.489 km

Perigee altitude

1,501.903 km

Semi-major axis

8,210.833 km

Eccentricity

0.04029

Inclination

102.3345°

RAAN

188.31°

Arg. of periapsis

47.3744°

True anomaly

107.35369°

Mean anomaly

102.9083°

Eccentric anomaly

105.13651°

Mean motion

2.91717 °/min

Orbital period

123.41 mins

BSTAR

0.0015058

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

DELTA 1 DEB, 10651 (Decayed)

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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.
6 mins	2026-09-13 11:35:15.183Z	338.927° N	2026-09-13 11:38:15.183Z	319.532° NNW	12.729°	2026-09-13 11:41:15.183Z	300.552° NW
10 mins	2026-09-13 17:22:15.183Z	84.634° E	2026-09-13 17:26:15.183Z	52.408° ENE	20.208°	2026-09-13 17:32:15.183Z	6.83° NNE
15 mins	2026-09-13 19:19:15.183Z	159.904° S	2026-09-13 19:26:15.183Z	170.073° S	86.892°	2026-09-13 19:34:15.183Z	341.903° N
7 mins	2026-09-13 21:25:15.183Z	243.57° WSW	2026-09-13 21:28:15.183Z	266.42° W	15.445°	2026-09-13 21:32:15.183Z	297.11° NW
5 mins	2026-09-14 06:16:15.183Z	79.37° E	2026-09-14 06:18:15.183Z	91.492° ESE	11.903°	2026-09-14 06:21:15.183Z	108.708° ESE
18 mins	2026-09-14 08:12:15.183Z	26.373° NE	2026-09-14 08:20:15.183Z	112.219° ESE	66.393°	2026-09-14 08:30:15.183Z	186.842° SSW
15 mins	2026-09-14 10:14:15.183Z	354.166° N	2026-09-14 10:20:15.183Z	304.479° NW	33.748°	2026-09-14 10:29:15.183Z	244.758° 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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Check out DELTA 1 DEB, 12535 on other resources

View DELTA 1 DEB, 12535 on Heavens-Above

View DELTA 1 DEB, 12535 on Keep Track

View DELTA 1 DEB, 12535 on Celestrak

View DELTA 1 DEB, 12535 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, 12535

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: 2026-09-12T07:00:43.680Z)

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, 12535 on other resources

Documentation

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