(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Number of unpublished observations |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