DELTA 1 DEB, 21291

Orbit data source: Space-Track

DELTA 1 DEB, 21291 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/21291?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/21291?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

21291, 1975-052AC

Orbit

SSO

Last TLE update

9 hours ago

Origin

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1975-06-12 (50 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Small (<0.1 m²)

Expand to show TLE details & history

TLE from 9 hours ago

0 DELTA 1 DEB
1 21291U 75052AC  25181.92228916  .00000338  00000-0  32997-3 0  9997
2 21291  99.8460 324.0243 0136674 246.0288 236.8756 13.82997838719088

Epoch: 2025-06-30T22:08Z

TLE epoch observation values (Epoch: 2025-06-30T22:08:05.783Z)

Latitude

57.14649°

Longitude

-91.7172°

Altitude

1,018.489 km

Speed

7.32 km/s

True Right ascension

10h 38m 07s

True Declination

56° 59' 42"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

53.08682°

Longitude

-93.55762°

Altitude

1,009.729 km

Speed

7.328 km/s

Apparent Right ascension

08h 22m 55s

Apparent Declination

12° 39' 49"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

18:28:05

Azimuth

326.838° NNW

Elevation

-31.042°

Doppler factor

Orbital elements

Apogee altitude

1,050.701 km

Perigee altitude

850.373 km

Semi-major axis

7,328.674 km

Eccentricity

0.01367

Inclination

99.846°

RAAN

324.0243°

Arg. of periapsis

246.0288°

True anomaly

Unknown

Mean anomaly

236.8756°

Eccentric anomaly

Unknown

Mean motion

3.45943 °/min

Orbital period

104.06 mins

BSTAR

0.00032997

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

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

DELTA 1 DEB, 21318 (Decayed)

DELTA 1 DEB, 21319

DELTA 1 DEB, 21320

DELTA 1 DEB, 21321 (Decayed)

DELTA 1 DEB Visibility forecast

Observer location: undefined°, undefined°

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	2025-07-01 08:06:13.850Z	110.69° ESE	2025-07-01 08:11:13.850Z	55.073° ENE	23.132°	2025-07-01 08:15:13.850Z	13.043° NNE
11 mins	2025-07-01 09:48:13.850Z	184.185° SSW	2025-07-01 09:53:13.850Z	268.184° W	40.02°	2025-07-01 09:59:13.850Z	336.635° NNW
10 mins	2025-07-01 22:27:13.850Z	15.882° NNE	2025-07-01 22:32:13.850Z	185.826° SSW	44.407°	2025-07-01 22:37:13.850Z	195.686° SSW
5 mins	2025-07-02 00:11:13.850Z	328.315° NNW	2025-07-02 00:13:13.850Z	307.448° NW	15.061°	2025-07-02 00:16:13.850Z	275.673° WNW

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in ascending order

Check out DELTA 1 DEB, 21291 on other resources

View DELTA 1 DEB, 21291 on Heavens-Above

View DELTA 1 DEB, 21291 on Keep Track

View DELTA 1 DEB, 21291 on Celestrak

View DELTA 1 DEB, 21291 on Gunter's Space Page

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