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: 19 hours ago
TLE from 19 hours ago
0 KUIPER-00025
1 63739U 25088R 26090.45273308 .00007000 00000-0 86549-3 0 9992
2 63739 51.9050 4.5623 0001198 74.3415 285.7681 14.83693184 51036Epoch: 2026-03-31T10:51Z
TLE epoch observation values (Epoch: 2026-03-31T10:51:56.138Z)
Latitude
-0.00002°
Longitude
12.74867°
Altitude
618.212 km
Speed
7.551 km/s
True Right ascension
00h 18m 14s
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
11:03:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
618.98 km
Perigee altitude
617.304 km
Semi-major axis
6,996.279 km
Eccentricity
0.00012
Inclination
51.905°
RAAN
4.5623°
Arg. of periapsis
74.3415°
True anomaly
285.75489°
Mean anomaly
285.7681°
Eccentric anomaly
285.76149°
Mean motion
3.70888 °/min
Orbital period
97.06 mins
BSTAR
0.00086549
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-04-01 19:20:31.488Z | 164.08° S | 2026-04-01 19:23:31.488Z | 120.492° SE | 15.813° | 2026-04-01 19:25:31.488Z | 92.377° ESE |
| 7 mins | 2026-04-01 21:00:31.488Z | 236.714° WSW | 2026-04-01 21:03:31.488Z | 272.041° WNW | 43.908° | 2026-04-01 21:07:31.488Z | 49.784° ENE |
| 5 mins | 2026-04-01 22:43:31.488Z | 304.513° NW | 2026-04-01 22:45:31.488Z | 340.926° N | 22.004° | 2026-04-01 22:48:31.488Z | 30.319° NE |
| 4 mins | 2026-04-02 00:26:31.488Z | 339.295° N | 2026-04-02 00:28:31.488Z | 12.163° NNE | 16.798° | 2026-04-02 00:30:31.488Z | 41.042° NE |
| 6 mins | 2026-04-02 02:07:31.488Z | 330.009° NNW | 2026-04-02 02:10:31.488Z | 30.603° NE | 28.372° | 2026-04-02 02:13:31.488Z | 83.748° E |
| 7 mins | 2026-04-02 03:48:31.488Z | 295.806° NW | 2026-04-02 03:51:31.488Z | 234.221° WSW | 39.096° | 2026-04-02 03:55:31.488Z | 147.703° SSE |
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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