DELTA 1 DEB, 10221

Orbit data source: Space-Track

DELTA 1 DEB, 10221 is space debris in LEO originally from a launch on Thu, 14 Jul 1977 UTC launched from the Air Force Eastern Test Range (AFETR). 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.

Not visible in the next 10 days

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/10221?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/10221?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

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ISO8601 Format

Identifier

10221, 1977-065AY

Orbit

LEO

Country

US

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1977-07-14 (48 years ago)

Launch vehicle

Unknown

Launch site

Air Force Eastern Test Range (AFETR)

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: 2 days ago

TLE from 2 days ago

0 DELTA 1 DEB
1 10221U 77065AY  25356.14969648  .00011935  00000-0  10580-2 0  9994
2 10221  29.0266 292.2589 0302851 103.1619 260.2941 14.65753440446625

Epoch: 2025-12-22T03:35Z

TLE epoch observation values (Epoch: 2025-12-22T03:35:33.775Z)

Latitude

-0.00001°

Longitude

147.41621°

Altitude

715.241 km

Speed

7.478 km/s

True Right ascension

19h 29m 02s

True Declination

0° 00' 00"

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

18:05:23

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

892.426 km

Perigee altitude

464.991 km

Semi-major axis

7,056.845 km

Eccentricity

0.03029

Inclination

29.0266°

RAAN

292.2589°

Arg. of periapsis

103.1619°

True anomaly

256.89705°

Mean anomaly

260.2941°

Eccentric anomaly

258.59317°

Mean motion

3.66123 °/min

Orbital period

98.33 mins

BSTAR

0.001058

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Other satellites on launch #65 in the year 1977 (1977-07-14 UTC)

DELTA 1 DEB, 10239 (Decayed)

DELTA 1 DEB, 14492 (Decayed)

DELTA 1 DEB, 14563

DELTA 1 DEB, 10207

DELTA 1 DEB, 19429

DELTA 1 DEB, 39098

DELTA 1 DEB, 10188

DELTA 1 DEB, 27729

DELTA 1 DEB, 10346

DELTA 1 DEB, 10220

DELTA 1 DEB, 10469

DELTA 1 DEB, 10470

DELTA 1 DEB, 10627

DELTA 1 DEB, 10233 (Decayed)

DELTA 1 DEB, 10185 (Decayed)

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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DELTA 1 DEB Visibility

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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.
DELTA 1 DEB is likely not visible in the next few days.

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, 10221 on other resources

View DELTA 1 DEB, 10221 on Heavens-Above

View DELTA 1 DEB, 10221 on Keep Track

View DELTA 1 DEB, 10221 on Celestrak

View DELTA 1 DEB, 10221 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

Documentation

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