(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 | 7.10 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 28.705008 ± 0.000760 au |
| Eccentricity | 0.518296011 ± 0.000006060 |
| Inclination | 35.484382655 ± 0.000022154 ° |
| Longitude of ascending node | 198.220022 ± 0.000049 ° |
| Argument of perihelia | 326.904033 ± 0.001550 ° |
| Mean anomaly | 331.380059 ± 0.001352 ° |
| Orbital period | 153.80 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 447178_2005RO43_nima_v4.bsp |
| Date of first observation | 2004-10-08 |
| Date of last observation | 2021-11-28 |
| Number of observations used in the fit | 408 |
| Number of rejected observations | 3 |
| Number of DES observations | 0 |
| Number of MPC observations | 396 |
| Number of unpublished observations | 15 |
| RMS of observations | 0.158 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.066 | 0.054 |
| 2021-07 | 0.064 | 0.072 |
| 2022-01 | 0.081 | 0.065 |
| 2022-07 | 0.099 | 0.078 |
| 2023-01 | 0.131 | 0.080 |
| 2023-07 | 0.160 | 0.084 |
| 2024-01 | 0.226 | 0.098 |
| 2024-07 | 0.257 | 0.091 |
| 2025-01 | 0.374 | 0.117 |
Ephemeris comparison
Difference between NIMAv4 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.