(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 | 55.245948 ± 0.004970 au |
| Eccentricity | 0.413049168 ± 0.000045502 |
| Inclination | 7.555012550 ± 0.000135287 ° |
| Longitude of ascending node | 265.104012 ± 0.002694 ° |
| Argument of perihelia | 112.013595 ± 0.001999 ° |
| Mean anomaly | 12.977079 ± 0.002326 ° |
| Orbital period | 410.64 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 143707_2003UY117_nima_v2.bsp |
| Date of first observation | 2001-07-26 |
| Date of last observation | 2019-11-30 |
| Number of observations used in the fit | 150 |
| Number of rejected observations | 6 |
| Number of DES observations | 3 |
| Number of MPC observations | 128 |
| Number of unpublished observations | 25 |
| RMS of observations | 0.217 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2019-01 | 0.089 | 0.074 |
| 2019-07 | 0.133 | 0.075 |
| 2020-01 | 0.105 | 0.080 |
| 2020-07 | 0.161 | 0.081 |
| 2021-01 | 0.129 | 0.086 |
| 2021-07 | 0.194 | 0.088 |
| 2022-01 | 0.159 | 0.092 |
| 2022-07 | 0.232 | 0.094 |
| 2023-01 | 0.195 | 0.099 |
Ephemeris comparison
Difference between NIMAv2 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.