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KUIPER-00021, 63736

Orbit data source: Space-Track

KUIPER-00021, 63736 is a payload satellite owned by Kuiper Systems (US) in LEO that was launched on Mon, 28 Apr 2025 UTC via an ATLAS V 551 launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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<iframe src="https://www.satcat.com/sats-embedded/63736?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/63736?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

63736, 2025-088N

Orbit

LEO

Last TLE update

8 hours ago

Origin

Amazon.com Inc (US)

Manufacturer

Kuiper Systems

Mission

Operational spacecraft

Bus & Motor

KUIPER, Unknown motor

Mass

~490 kg wet, ~490 kg dry

Launch date (UTC)

2025-04-28 (2 months ago)

Launch vehicle

ATLAS V 551

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history

TLE from 8 hours ago

0 KUIPER-00021
1 63736U 25088N   25175.06161719  .00012017  00000-0  34733-3 0  9993
2 63736  51.8630 187.3506 0005562 317.2367  42.8186 15.36042165  8906

Epoch: 2025-06-24T01:28Z

TLE epoch observation values (Epoch: 2025-06-24T01:28:43.725Z)

Latitude

0.00002°

Longitude

-107.29452°

Altitude

455.8 km

Speed

7.642 km/s

True Right ascension

12h 29m 24s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

13.8906°

Longitude

-97.74759°

Altitude

455.881 km

Speed

7.643 km/s

Apparent Right ascension

11h 13m 33s

Apparent Declination

-14° 18' 27"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

20:32:25

Azimuth

294.447° NW

Elevation

-46.515°

Doppler factor

Orbital elements

Apogee altitude

462.097 km

Perigee altitude

454.493 km

Semi-major axis

6,836.432 km

Eccentricity

0.00056

Inclination

51.863°

RAAN

187.3506°

Arg. of periapsis

317.2367°

True anomaly

Unknown

Mean anomaly

42.8186°

Eccentric anomaly

Unknown

Mean motion

3.83971 °/min

Orbital period

93.76 mins

BSTAR

0.00034733

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Other satellites on launch #88 in the year 2025 (2025-04-28 UTC)

KUIPER-00021 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.
6 mins	2025-06-24 09:44:45.492Z	319.1° NNW	2025-06-24 09:47:45.492Z	12.95° NNE	32.643°	2025-06-24 09:50:45.492Z	98.389° ESE
4 mins	2025-06-24 11:23:45.492Z	270.455° WNW	2025-06-24 11:25:45.492Z	223.741° SW	22.497°	2025-06-24 11:27:45.492Z	180.775° SSW
4 mins	2025-06-25 04:15:45.492Z	276.305° WNW	2025-06-25 04:16:45.492Z	307.27° NW	32.487°	2025-06-25 04:19:45.492Z	35.546° NE
5 mins	2025-06-25 09:10:45.492Z	332.941° NNW	2025-06-25 09:12:45.492Z	24.156° NE	29.131°	2025-06-25 09:15:45.492Z	92.885° ESE

Authenticating...

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Check out KUIPER-00021, 63736 on other resources

View KUIPER-00021, 63736 on NASA - NSSDCA Website

View KUIPER-00021, 63736 on Heavens-Above

View KUIPER-00021, 63736 on Keep Track

View KUIPER-00021, 63736 on Celestrak

View KUIPER-00021, 63736 on Gunter's Space Page

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