KUIPER-00025, 63739
Orbit data source: Space-Track
KUIPER-00025, 63739 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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63739 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Kuiper Systems
Mission
Operational Commercial Communications
Bus & Motor
KUIPER, Unknown motor
Mass
~490 kg wet, ~490 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 3.4 m
Radar Cross Section
2.326 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 18 hours ago
TLE from 18 hours ago
0 KUIPER-00025
1 63739U 25088R 25348.91668981 -.00000068 00000-0 21236-4 0 9994
2 63739 51.8995 116.3907 0010206 147.1341 325.4954 14.76674076 5683Epoch: 2025-12-14T22:00Z
TLE epoch observation values (Epoch: 2025-12-14T22:00:01.999Z)
Latitude
46.75423°
Longitude
-173.45123°
Altitude
638.908 km
Speed
7.548 km/s
True Right ascension
16h 01m 31s
True Declination
46° 34' 47"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
15:07:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
647.456 km
Perigee altitude
633.13 km
Semi-major axis
7,018.43 km
Eccentricity
0.00102
Inclination
51.8995°
RAAN
116.3907°
Arg. of periapsis
147.1341°
True anomaly
325.42908°
Mean anomaly
325.4954°
Eccentric anomaly
325.46225°
Mean motion
3.69133 °/min
Orbital period
97.53 mins
BSTAR
0.000021236
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Other satellites on launch #88 in the year 2025 (2025-04-28 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.KUIPER-00025 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-12-15 17:27:36.753Z | 317.642° NNW | 2025-12-15 17:31:36.753Z | 43.453° NE | 37.694° | 2025-12-15 17:35:36.753Z | 107.671° ESE |
| 6 mins | 2025-12-15 19:10:36.753Z | 273.188° WNW | 2025-12-15 19:12:36.753Z | 235.413° WSW | 25.848° | 2025-12-15 19:16:36.753Z | 170.209° S |
| 7 mins | 2025-12-16 11:02:36.753Z | 217.503° SW | 2025-12-16 11:05:36.753Z | 103.286° ESE | 42.472° | 2025-12-16 11:09:36.753Z | 56.406° ENE |
| 6 mins | 2025-12-16 12:44:36.753Z | 287.933° WNW | 2025-12-16 12:47:36.753Z | 346.142° N | 26.074° | 2025-12-16 12:50:36.753Z | 33.91° NE |
| 4 mins | 2025-12-16 14:28:36.753Z | 334.551° NNW | 2025-12-16 14:30:36.753Z | 7.005° NNE | 17.154° | 2025-12-16 14:32:36.753Z | 35.689° NE |
| 6 mins | 2025-12-16 16:10:36.753Z | 335.4° NNW | 2025-12-16 16:12:36.753Z | 10.438° NNE | 24.388° | 2025-12-16 16:16:36.753Z | 77.032° E |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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