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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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: 3 days ago
TLE from 3 days ago
0 KUIPER-00025
1 63739U 25088R 26154.99191258 .00000200 00000-0 55219-4 0 9991
2 63739 51.9028 78.9880 0000790 63.8568 296.2476 14.79936512 60590Epoch: 2026-06-03T23:48Z
TLE epoch observation values (Epoch: 2026-06-03T23:48:21.246Z)
Latitude
-0.00001°
Longitude
-170.54311°
Altitude
630.027 km
Speed
7.545 km/s
True Right ascension
05h 15m 57s
True Declination
0° 00' 00"
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
13:52:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
630.529 km
Perigee altitude
629.422 km
Semi-major axis
7,008.112 km
Eccentricity
0.00008
Inclination
51.9028°
RAAN
78.988°
Arg. of periapsis
63.8568°
True anomaly
296.23948°
Mean anomaly
296.2476°
Eccentric anomaly
296.24354°
Mean motion
3.69949 °/min
Orbital period
97.31 mins
BSTAR
0.000055219
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Other satellites on launch #88 in the year 2025 (2025-04-28 UTC)
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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.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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-07 04:31:33.776Z | 285.044° WNW | 2026-06-07 04:34:33.776Z | 236.832° WSW | 27.029° | 2026-06-07 04:38:33.776Z | 168.443° S |
| 7 mins | 2026-06-07 20:21:33.776Z | 215.967° SW | 2026-06-07 20:24:33.776Z | 170.503° S | 40.588° | 2026-06-07 20:28:33.776Z | 60.014° ENE |
| 6 mins | 2026-06-07 22:04:33.776Z | 290.702° WNW | 2026-06-07 22:06:33.776Z | 331.329° NNW | 27.132° | 2026-06-07 22:10:33.776Z | 37.699° NE |
| 4 mins | 2026-06-07 23:47:33.776Z | 329.373° NNW | 2026-06-07 23:49:33.776Z | 1.152° NNE | 17.18° | 2026-06-07 23:51:33.776Z | 31.257° NE |
| 6 mins | 2026-06-08 01:29:33.776Z | 334.673° NNW | 2026-06-08 01:32:33.776Z | 30.299° NE | 23.129° | 2026-06-08 01:35:33.776Z | 73.961° E |
| 8 mins | 2026-06-08 03:10:33.776Z | 307.612° NW | 2026-06-08 03:13:33.776Z | 306.442° NW | 43.658° | 2026-06-08 03:18:33.776Z | 129.337° SE |
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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