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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Iframe URL

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)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 DELTA 1 DEB
1 12535U 76077DQ  26171.32545084  .00000053  00000-0  13591-2 0  9990
2 12535 102.3323 114.3736 0400413 181.1136 334.4591 11.66350100 63012

Epoch: 2026-06-20T07:48Z

TLE epoch observation values (Epoch: 2026-06-20T07:48:38.952Z)

Latitude

25.87456°

Longitude

-85.2733°

Altitude

1,543.673 km

Speed

7.223 km/s

True Right ascension

20h 01m 43s

True Declination

25° 45' 11"

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

01:24:32

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

2,161.592 km

Perigee altitude

1,504.038 km

Semi-major axis

8,210.952 km

Eccentricity

0.04004

Inclination

102.3323°

RAAN

114.3736°

Arg. of periapsis

181.1136°

True anomaly

332.38786°

Mean anomaly

334.4591°

Eccentric anomaly

333.43304°

Mean motion

2.91711 °/min

Orbital period

123.41 mins

BSTAR

0.0013591

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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	2026-06-20 17:26:45.382Z	82.864° E	2026-06-20 17:32:45.382Z	48.87° ENE	18.569°	2026-06-20 17:39:45.382Z	6.196° NNE
20 mins	2026-06-20 19:22:45.382Z	143.508° SSE	2026-06-20 19:31:45.382Z	79.663° E	42.893°	2026-06-20 19:42:45.382Z	346.605° N
18 mins	2026-06-20 21:24:45.382Z	206.924° SW	2026-06-20 21:33:45.382Z	266.357° W	29.103°	2026-06-20 21:42:45.382Z	323.9° NNW
15 mins	2026-06-21 08:19:45.382Z	34.023° NE	2026-06-21 08:26:45.382Z	96.579° ESE	34.39°	2026-06-21 08:34:45.382Z	168.889° S
14 mins	2026-06-21 10:20:45.382Z	3.457° NNE	2026-06-21 10:27:45.382Z	302.85° NW	34.339°	2026-06-21 10:34:45.382Z	236.652° 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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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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: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-06-20T07:48:38.952Z)

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: 7 hours ago