(447178) 2005RO43
This object has a more recent orbit available here
Object
| Object | (447178) 2005RO43 |
| Diameter(1) | 194 km |
| Dynamic class(1) | Centaur |
| Absolute magnitude | 7.24 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 28.793050 ± 0.000755 au |
| Eccentricity | 0.518293907 ± 0.000006076 |
| Inclination | 35.456501649 ± 0.000020858 ° |
| Longitude of ascending node | 198.070918 ± 0.000047 ° |
| Argument of perihelia | 326.625195 ± 0.001524 ° |
| Mean anomaly | 339.241883 ± 0.001033 ° |
| Orbital period | 154.50 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 447178_2005RO43_nima_v6.bsp |
| Date of first observation | 2004-10-08 |
| Date of last observation | 2023-01-27 |
| Number of observations used in the fit | 431 |
| Number of rejected observations | 3 |
| Number of DES observations | 0 |
| Number of MPC observations | 404 |
| Number of unpublished observations | 30 |
| RMS of observations | 0.162 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) |
| 2022-01 | 0.069 | 0.059 |
| 2022-07 | 0.082 | 0.076 |
| 2023-01 | 0.111 | 0.072 |
| 2023-07 | 0.136 | 0.082 |
| 2024-01 | 0.198 | 0.089 |
| 2024-07 | 0.226 | 0.088 |
| 2025-01 | 0.338 | 0.106 |
| 2025-07 | 0.358 | 0.096 |
| 2026-01 | 0.539 | 0.122 |
Ephemeris comparison
Difference between NIMAv6 and JPL9 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.