(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 | 28.705559 ± 0.001932 au |
| Eccentricity | 0.518300675 ± 0.000012470 |
| Inclination | 35.484374126 ± 0.000520773 ° |
| Longitude of ascending node | 198.220011 ± 0.000454 ° |
| Argument of perihelia | 326.902936 ± 0.003922 ° |
| Mean anomaly | 331.381078 ± 0.003247 ° |
| Orbital period | 153.80 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 447178_2005RO43_nima_v1.bsp |
| Date of first observation | 2004-10-08 |
| Date of last observation | 2019-01-24 |
| Number of observations used in the fit | 214 |
| Number of rejected observations | 2 |
| Number of DES observations | 0 |
| Number of MPC observations | 216 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.202 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.139 | 0.106 |
| 2018-07 | 0.161 | 0.168 |
| 2019-01 | 0.175 | 0.128 |
| 2019-07 | 0.263 | 0.177 |
| 2020-01 | 0.283 | 0.161 |
| 2020-07 | 0.417 | 0.185 |
| 2021-01 | 0.475 | 0.206 |
| 2021-07 | 0.636 | 0.193 |
| 2022-01 | 0.768 | 0.264 |
Ephemeris comparison
Difference between NIMAv1 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.