(143707) 2003UY117
This object has a more recent orbit available here
Object
| Object | (143707) 2003UY117 |
| Diameter(1) | 247 km |
| Dynamic class(1) | res2:5 |
| Absolute magnitude | 5.99 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2460600.5 |
| Semi major axis | 56.294338 ± 0.002751 au |
| Eccentricity | 0.422290661 ± 0.000024531 |
| Inclination | 7.520120125 ± 0.000027103 ° |
| Longitude of ascending node | 265.247086 ± 0.000135 ° |
| Argument of perihelia | 112.976434 ± 0.001005 ° |
| Mean anomaly | 16.848808 ± 0.001571 ° |
| Orbital period | 422.38 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv7 |
| Observation file |
omc_ast_NIMAv7.txt |
| bsp file | 143707_2003UY117_nima_v7.bsp |
| Date of first observation | 2001-07-26 |
| Date of last observation | 2024-01-04 |
| Number of observations used in the fit | 458 |
| Number of rejected observations | 13 |
| Number of DES observations | 3 |
| Number of MPC observations | 419 |
| Number of unpublished observations | 49 |
| RMS of observations | 0.152 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.043 | 0.020 |
| 2024-07 | 0.053 | 0.019 |
| 2025-01 | 0.051 | 0.023 |
| 2025-07 | 0.069 | 0.023 |
| 2026-01 | 0.062 | 0.026 |
| 2026-07 | 0.088 | 0.026 |
| 2027-01 | 0.078 | 0.030 |
| 2027-07 | 0.108 | 0.029 |
| 2028-01 | 0.096 | 0.033 |
Ephemeris comparison
Difference between NIMAv7 and JPL20 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.