DELTA 1 DEB, 12537

Orbit data source: Space-Track

DELTA 1 DEB, 12537 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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Iframe URL

https://www.satcat.com/sats-embedded/12537?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

12537, 1976-077DS

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: 6 hours ago

TLE from 6 hours ago

0 DELTA 1 DEB
1 12537U 76077DS  26121.18059954  .00000106  00000-0  15312-2 0  9999
2 12537 102.3093  85.9164 0161942 357.5289 118.3906 12.11613926 31131

Epoch: 2026-05-01T04:20Z

TLE epoch observation values (Epoch: 2026-05-01T04:20:03.800Z)

Latitude

60.12448°

Longitude

3.9959°

Altitude

1,702.563 km

Speed

7.002 km/s

True Right ascension

19h 12m 30s

True Declination

59° 59' 35"

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

18:12:59

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,756.543 km

Perigee altitude

1,497.272 km

Semi-major axis

8,005.044 km

Eccentricity

0.01619

Inclination

102.3093°

RAAN

85.9164°

Arg. of periapsis

357.5289°

True anomaly

120.00734°

Mean anomaly

118.3906°

Eccentric anomaly

119.20054°

Mean motion

3.03038 °/min

Orbital period

118.8 mins

BSTAR

0.0015312

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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.
15 mins	2026-05-01 12:12:58.111Z	359.71° N	2026-05-01 12:19:58.111Z	307.384° NW	28.203°	2026-05-01 12:27:58.111Z	248.084° W
11 mins	2026-05-01 19:43:58.111Z	97.309° ESE	2026-05-01 19:48:58.111Z	52.97° ENE	24.946°	2026-05-01 19:54:58.111Z	4.725° NNE
15 mins	2026-05-01 21:37:58.111Z	171.713° S	2026-05-01 21:44:58.111Z	270.921° WNW	43.467°	2026-05-01 21:52:58.111Z	337.849° N
4 mins	2026-05-01 23:40:58.111Z	260.501° W	2026-05-01 23:42:58.111Z	274.81° WNW	11.566°	2026-05-01 23:44:58.111Z	288.807° WNW
17 mins	2026-05-02 10:03:58.111Z	29.073° NE	2026-05-02 10:11:58.111Z	115.628° SE	40.438°	2026-05-02 10:20:58.111Z	182.014° SSW

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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, 12537 on other resources

View DELTA 1 DEB, 12537 on Heavens-Above

View DELTA 1 DEB, 12537 on Keep Track

View DELTA 1 DEB, 12537 on Celestrak

View DELTA 1 DEB, 12537 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, 12537

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-05-01T04:20:03.800Z)

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, 12537 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago