(144897) 2004 UX10
Kuiper Belt object
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(144897) 2004 UX10 (provisional designation 2004 UX10) is a Kuiper-belt object. It has a diameter of about 360 kilometres (220 mi)[5] and was discovered by Andrew Becker, Andrew Puckett and Jeremy Kubica on 20 October 2004 at Apache Point Observatory in Sunspot, New Mexico.[2] The object is classified as a cubewano.[3][4] It is near a 2:3 resonance with Neptune.[5][7]
| Discovery[1] | |
|---|---|
| Discovered by | A. C. Becker A. W. Puckett J. Kubica |
| Discovery site | Apache Point Obs. |
| Discovery date | 20 October 2004 |
| Designations | |
| (144897) 2004 UX10 | |
| TNO[2] · cubewano[3][4] | |
| Orbital characteristics[2] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 2 | |
| Observation arc | 65.21 yr (23,818 days) |
| Aphelion | 40.591 AU |
| Perihelion | 37.152 AU |
| 38.871 AU | |
| Eccentricity | 0.0442 |
| 242.35 yr (88,520 days) | |
| 102.254° | |
| 0° 0m 14.76s / day | |
| Inclination | 9.5316° |
| 147.90° | |
| 149.15° | |
| Known satellites | 0 |
| Physical characteristics | |
| Dimensions | 361+124 â94 km[5] 398±39 km[5][6] |
| Mass | â³3Ã1019 kg |
Mean density | > 1.21 g/cm3[7] |
Equatorial surface gravity | > 0.06 m/s2 |
Equatorial escape velocity | > 0.15 km/s |
| 7.58±0.05 h[8] | |
| 0.141+0.044 â0.031[5] | |
| BâV =0.95±0.02[5] VâR = 0.58±0.05[5] | |
| 20.6[9] | |
| 4.75±0.16[5] 4.4[2] | |
Orbit and rotation
Based on an integration of its motion over 10 million years, 2004 UX10 has been classified as a classical Kuiper belt object (cubewano). The object is currently at 39 AU from the Sun.[9]
The rotational period of 2004 UX10 is 7.58 hours.[8]
Physical properties
The size of 2004 UX10 was measured by the Herschel Space Telescope to be 361+124
â94 km.[5] The mass of the object is currently unknown but should be greater than about 3Ã1019 kg.[7]
2004 UX10 has a moderately red slope in the visible spectral range. Its visible spectrum does not show any features, although there is a small departure from the linearity near 0.8 μm.[10]
