(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 |
56.126617 ± 0.002739 au |
| Eccentricity |
0.421762845 ± 0.000024471 |
| Inclination |
7.537339872 ± 0.000027169 ° |
| Longitude of ascending node |
265.182186 ± 0.000135 ° |
| Argument of perihelia |
112.462289 ± 0.001031 ° |
| Mean anomaly |
15.250118 ± 0.001464 ° |
| Orbital period |
420.50 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv6 |
| Observation file (documentation) |
omc_ast_NIMAv6.txt |
| bsp file |
143707_2003UY117_nima_v6.bsp |
| Date of first observation |
2001-07-26 |
| Date of last observation |
2022-11-25 |
| Number of observations used in the fit |
433 |
| Number of rejected observations |
13 |
| Number of DES observations |
3 |
| Number of MPC observations |
394 |
| Number of unpublished observations |
49 |
| RMS of observations |
0.152 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2023-01 |
0.040 |
0.018 |
| 2023-07 |
0.039 |
0.016 |
| 2024-01 |
0.043 |
0.020 |
| 2024-07 |
0.054 |
0.019 |
| 2025-01 |
0.051 |
0.023 |
| 2025-07 |
0.070 |
0.023 |
| 2026-01 |
0.063 |
0.026 |
| 2026-07 |
0.088 |
0.026 |
| 2027-01 |
0.078 |
0.030 |
Ephemeris comparison
Difference between NIMAv6 and JPL18 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