(143707) 2003UY117
This object has a more recent orbit available here
Object
| Object | (143707) 2003UY117 |
| Diameter(1) | 321 km |
| Dynamic class(1) | res2:5 |
| Absolute magnitude | 5.70 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 55.247581 ± 0.004985 au |
| Eccentricity | 0.413064211 ± 0.000045827 |
| Inclination | 7.555037416 ± 0.000153006 ° |
| Longitude of ascending node | 265.103853 ± 0.002934 ° |
| Argument of perihelia | 112.014018 ± 0.002996 ° |
| Mean anomaly | 12.976406 ± 0.002224 ° |
| Orbital period | 410.66 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 143707_2003UY117_nima_v1.bsp |
| Date of first observation | 2001-07-26 |
| Date of last observation | 2017-12-20 |
| Number of observations used in the fit | 125 |
| Number of rejected observations | 3 |
| Number of DES observations | 3 |
| Number of MPC observations | 125 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.271 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.126 | 0.086 |
| 2018-07 | 0.205 | 0.091 |
| 2019-01 | 0.165 | 0.094 |
| 2019-07 | 0.253 | 0.099 |
| 2020-01 | 0.212 | 0.102 |
| 2020-07 | 0.308 | 0.107 |
| 2021-01 | 0.267 | 0.111 |
| 2021-07 | 0.369 | 0.115 |
| 2022-01 | 0.329 | 0.119 |
Ephemeris comparison
Difference between NIMAv1 and JPL8 in right ascension (weighted by cos δ) and in declination.
Gray area represents the 1-σ uncertainty of NIMA ephemeris. Green dots represent the DES observations.