KUIPER-00013, 63729
Orbit data source: Space-Track
KUIPER-00013, 63729 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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63729 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: 1 day ago
TLE from 1 day ago
0 KUIPER-00013
1 63729U 25088F 26090.18885902 -.00002595 00000-0 -31166-3 0 9991
2 63729 51.9041 13.0284 0001869 118.1147 242.0005 14.79899666 50759Epoch: 2026-03-31T04:31Z
TLE epoch observation values (Epoch: 2026-03-31T04:31:57.419Z)
Latitude
0.00003°
Longitude
116.46956°
Altitude
631.003 km
Speed
7.544 km/s
True Right ascension
00h 52m 06s
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
11:02:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
631.401 km
Perigee altitude
628.782 km
Semi-major axis
7,008.228 km
Eccentricity
0.00019
Inclination
51.9041°
RAAN
13.0284°
Arg. of periapsis
118.1147°
True anomaly
241.98159°
Mean anomaly
242.0005°
Eccentric anomaly
241.99105°
Mean motion
3.6994 °/min
Orbital period
97.31 mins
BSTAR
-0.00031166
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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-00013 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-04-01 05:24:15.867Z | 278.045° WNW | 2026-04-01 05:27:15.867Z | 229.967° WSW | 22.302° | 2026-04-01 05:30:15.867Z | 181.901° SSW |
| 7 mins | 2026-04-01 21:14:15.867Z | 225.572° WSW | 2026-04-01 21:17:15.867Z | 183.153° SSW | 44.246° | 2026-04-01 21:21:15.867Z | 54.679° ENE |
| 6 mins | 2026-04-01 22:57:15.867Z | 298.073° NW | 2026-04-01 22:59:15.867Z | 336.678° NNW | 24.614° | 2026-04-01 23:03:15.867Z | 38.075° NE |
| 4 mins | 2026-04-02 00:40:15.867Z | 332.63° NNW | 2026-04-02 00:42:15.867Z | 4.371° NNE | 17.093° | 2026-04-02 00:44:15.867Z | 34.358° NE |
| 6 mins | 2026-04-02 02:22:15.867Z | 335.301° NNW | 2026-04-02 02:24:15.867Z | 11.581° NNE | 25.475° | 2026-04-02 02:28:15.867Z | 80.182° E |
| 7 mins | 2026-04-02 04:03:15.867Z | 301.92° NW | 2026-04-02 04:06:15.867Z | 247.415° WSW | 43.12° | 2026-04-02 04:10:15.867Z | 138.486° 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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