(143707) 2003UY117
Object
| Object |
(143707) 2003UY117 |
| Diameter(1) |
235 km |
| Dynamic class(1) |
res2:5 |
| Absolute magnitude |
5.97 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
56.214749 ± 0.002737 au |
| Eccentricity |
0.421275964 ± 0.000024469 |
| Inclination |
7.519122297 ± 0.000027071 ° |
| Longitude of ascending node |
265.250428 ± 0.000135 ° |
| Argument of perihelia |
113.021547 ± 0.001004 ° |
| Mean anomaly |
17.344138 ± 0.001603 ° |
| Orbital period |
421.49 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv8 |
| Observation file (documentation) |
omc_ast_NIMAv8.txt |
| bsp file |
143707_2003UY117_nima_v8.bsp |
| Date of first observation |
2001-07-26 |
| Date of last observation |
2025-01-02 |
| Number of observations used in the fit |
486 |
| Number of rejected observations |
13 |
| Number of DES observations |
3 |
| Number of MPC observations |
447 |
| Number of unpublished observations |
49 |
| RMS of observations |
0.151 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv8 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 |
0.050 |
0.023 |
| 2025-07 |
0.069 |
0.023 |
| 2026-01 |
0.062 |
0.026 |
| 2026-07 |
0.087 |
0.026 |
| 2027-01 |
0.077 |
0.029 |
| 2027-07 |
0.107 |
0.029 |
| 2028-01 |
0.095 |
0.033 |
Ephemeris comparison
Difference between NIMAv8 and JPL23 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