(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 | 28.705150 ± 0.001598 au |
| Eccentricity | 0.518297880 ± 0.000012092 |
| Inclination | 35.484390849 ± 0.000322423 ° |
| Longitude of ascending node | 198.220030 ± 0.000234 ° |
| Argument of perihelia | 326.903803 ± 0.003211 ° |
| Mean anomaly | 331.380343 ± 0.002834 ° |
| Orbital period | 153.80 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 447178_2005RO43_nima_v2.bsp |
| Date of first observation | 2004-10-08 |
| Date of last observation | 2019-09-28 |
| Number of observations used in the fit | 221 |
| Number of rejected observations | 3 |
| Number of DES observations | 0 |
| Number of MPC observations | 216 |
| Number of unpublished observations | 8 |
| RMS of observations | 0.179 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2019-01 | 0.164 | 0.088 |
| 2019-07 | 0.101 | 0.111 |
| 2020-01 | 0.164 | 0.104 |
| 2020-07 | 0.124 | 0.119 |
| 2021-01 | 0.172 | 0.128 |
| 2021-07 | 0.176 | 0.126 |
| 2022-01 | 0.225 | 0.161 |
| 2022-07 | 0.276 | 0.134 |
| 2023-01 | 0.362 | 0.202 |
Ephemeris comparison
Difference between NIMAv2 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.