DELTA 1 DEB, 12538

Orbit data source: Space-Track

DELTA 1 DEB, 12538 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/12538?theme=dark&initialShowStats=false

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Identifier

12538, 1976-077DT

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, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 18 hours ago

TLE from 18 hours ago

0 DELTA 1 DEB
1 12538U 76077DT  26303.25448449 -.00000009  00000-0  37810-3 0  9992
2 12538 102.7787  36.3004 0197478  37.5144  26.9986 12.05755553 48717

Epoch: 2026-10-30T06:06Z

TLE epoch observation values (Epoch: 2026-10-30T06:06:27.459Z)

Latitude

62.69544°

Longitude

-119.81576°

Altitude

1,525.018 km

Speed

7.171 km/s

True Right ascension

00h 41m 30s

True Declination

62° 34' 07"

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

20:01:26

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,811.454 km

Perigee altitude

1,494.265 km

Semi-major axis

8,030.996 km

Eccentricity

0.01975

Inclination

102.7787°

RAAN

36.3004°

Arg. of periapsis

37.5144°

True anomaly

28.04892°

Mean anomaly

26.9986°

Eccentric anomaly

27.52143°

Mean motion

3.01571 °/min

Orbital period

119.38 mins

BSTAR

0.0003781

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

DELTA 1 DEB, 40770

DELTA 1 DEB, 10761 (Decayed)

DELTA 1 DEB, 16997 (Decayed)

DELTA 1 DEB, 18677 (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.
9 mins	2026-10-31 03:52:35.653Z	80.369° E	2026-10-31 03:56:35.653Z	50.335° ENE	17.468°	2026-10-31 04:01:35.653Z	12.382° NNE
15 mins	2026-10-31 05:45:35.653Z	149.91° SSE	2026-10-31 05:52:35.653Z	69.633° E	75.643°	2026-10-31 06:00:35.653Z	344.881° N
11 mins	2026-10-31 07:45:35.653Z	225.805° WSW	2026-10-31 07:50:35.653Z	267.407° W	21.845°	2026-10-31 07:56:35.653Z	313.321° NW
15 mins	2026-10-31 18:15:35.653Z	41.337° NE	2026-10-31 18:22:35.653Z	104.847° ESE	37.459°	2026-10-31 18:30:35.653Z	163.496° S
16 mins	2026-10-31 20:11:35.653Z	8.351° NNE	2026-10-31 20:19:35.653Z	290.358° WNW	54.927°	2026-10-31 20:27:35.653Z	224.937° SW
6 mins	2026-10-31 22:11:35.653Z	336.55° NNW	2026-10-31 22:14:35.653Z	315.924° NNW	13.419°	2026-10-31 22:17:35.653Z	296.107° NW

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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, 12538 on other resources

View DELTA 1 DEB, 12538 on Heavens-Above

View DELTA 1 DEB, 12538 on Keep Track

View DELTA 1 DEB, 12538 on Celestrak

View DELTA 1 DEB, 12538 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, 12538

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2026-10-30T06:06:27.459Z)

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, 12538 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 18 hours ago