(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 | 6.01 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 56.126621 ± 0.002733 au |
| Eccentricity | 0.421762867 ± 0.000024415 |
| Inclination | 7.537339957 ± 0.000027180 ° |
| Longitude of ascending node | 265.182185 ± 0.000135 ° |
| Argument of perihelia | 112.462308 ± 0.001033 ° |
| Mean anomaly | 15.250109 ± 0.001461 ° |
| Orbital period | 420.50 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 143707_2003UY117_nima_v5.bsp |
| Date of first observation | 2001-07-26 |
| Date of last observation | 2021-11-28 |
| Number of observations used in the fit | 412 |
| Number of rejected observations | 8 |
| Number of DES observations | 6 |
| Number of MPC observations | 370 |
| Number of unpublished observations | 44 |
| RMS of observations | 0.154 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.039 | 0.016 |
| 2022-07 | 0.028 | 0.013 |
| 2023-01 | 0.040 | 0.018 |
| 2023-07 | 0.040 | 0.016 |
| 2024-01 | 0.044 | 0.020 |
| 2024-07 | 0.054 | 0.019 |
| 2025-01 | 0.052 | 0.023 |
| 2025-07 | 0.071 | 0.023 |
| 2026-01 | 0.063 | 0.026 |
Ephemeris comparison
Difference between NIMAv5 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.