(143707) 2003UY117
Object
| Object |
(143707) 2003UY117 |
| Diameter(1) |
321 km |
| Dynamic class(1) |
res2:5 |
| Absolute magnitude |
6.01 |
| G slop |
0.15 |
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 (documentation) |
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| Number of unpublished observations |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.
Previous NIMA versions