(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 | 28.705026 ± 0.000817 au |
| Eccentricity | 0.518296200 ± 0.000006448 |
| Inclination | 35.484380511 ± 0.000160092 ° |
| Longitude of ascending node | 198.220018 ± 0.000128 ° |
| Argument of perihelia | 326.904003 ± 0.001630 ° |
| Mean anomaly | 331.380094 ± 0.001451 ° |
| Orbital period | 153.80 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv3 |
| Observation file |
omc_ast_NIMAv3.txt |
| bsp file | 447178_2005RO43_nima_v3.bsp |
| Date of first observation | 2004-10-08 |
| Date of last observation | 2020-11-16 |
| Number of observations used in the fit | 374 |
| Number of rejected observations | 3 |
| Number of DES observations | 0 |
| Number of MPC observations | 364 |
| Number of unpublished observations | 13 |
| RMS of observations | 0.144 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.094 | 0.074 |
| 2021-07 | 0.106 | 0.082 |
| 2022-01 | 0.134 | 0.091 |
| 2022-07 | 0.162 | 0.090 |
| 2023-01 | 0.213 | 0.112 |
| 2023-07 | 0.250 | 0.098 |
| 2024-01 | 0.343 | 0.136 |
| 2024-07 | 0.380 | 0.107 |
| 2025-01 | 0.536 | 0.160 |
Ephemeris comparison
Difference between NIMAv3 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.