DELTA 1 DEB, 21278

Orbit data source: Space-Track

DELTA 1 DEB, 21278 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 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/21278?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21278, 1975-052P

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1975-06-12 (51 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.3 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 DELTA 1 DEB
1 21278U 75052P   26182.22886839  .00000162  00000-0  65979-3 0  9992
2 21278  99.8265 334.3062 0388823 201.4730 287.8505 12.77558220638349

Epoch: 2026-07-01T05:29Z

TLE epoch observation values (Epoch: 2026-07-01T05:29:34.228Z)

Latitude

53.89071°

Longitude

166.29033°

Altitude

1,278.657 km

Speed

7.259 km/s

True Right ascension

11h 11m 53s

True Declination

53° 44' 17"

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

10:20:02

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,649.14 km

Perigee altitude

1,048.265 km

Semi-major axis

7,726.84 km

Eccentricity

0.03888

Inclination

99.8265°

RAAN

334.3062°

Arg. of periapsis

201.473°

True anomaly

283.54936°

Mean anomaly

287.8505°

Eccentric anomaly

285.70589°

Mean motion

3.19551 °/min

Orbital period

112.66 mins

BSTAR

0.00065979

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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB, 21280

DELTA 1 DEB, 21345

DELTA 1 DEB, 21597 (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.
12 mins	2026-07-02 00:13:32.505Z	358.52° N	2026-07-02 00:20:32.505Z	291.326° WNW	28.52°	2026-07-02 00:25:32.505Z	240.296° WSW
15 mins	2026-07-02 09:07:32.505Z	132.566° SE	2026-07-02 09:14:32.505Z	73.831° E	36.865°	2026-07-02 09:22:32.505Z	357.735° N
15 mins	2026-07-02 10:58:32.505Z	197.818° SSW	2026-07-02 11:05:32.505Z	258.325° W	34.496°	2026-07-02 11:13:32.505Z	329.709° NNW

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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, 21278 on other resources

View DELTA 1 DEB, 21278 on Heavens-Above

View DELTA 1 DEB, 21278 on Keep Track

View DELTA 1 DEB, 21278 on Celestrak

View DELTA 1 DEB, 21278 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, 21278

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-07-01T05:29:34.228Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 21278 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 17 hours ago