(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 | 7.21 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2460200.5 |
| Semi major axis | 28.919775 ± 0.000531 au |
| Eccentricity | 0.519993438 ± 0.000004947 |
| Inclination | 35.455993232 ± 0.000014474 ° |
| Longitude of ascending node | 198.064428 ± 0.000038 ° |
| Argument of perihelia | 326.423542 ± 0.000988 ° |
| Mean anomaly | 341.975955 ± 0.000669 ° |
| Orbital period | 155.53 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv9 |
| Observation file |
omc_ast_NIMAv9.txt |
| bsp file | 447178_2005RO43_nima_v9.bsp |
| Date of first observation | 2004-10-08 |
| Date of last observation | 2023-11-19 |
| Number of observations used in the fit | 497 |
| Number of rejected observations | 3 |
| Number of DES observations | 0 |
| Number of MPC observations | 445 |
| Number of unpublished observations | 55 |
| RMS of observations | 0.218 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv9 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.057 | 0.047 |
| 2023-07 | 0.053 | 0.058 |
| 2024-01 | 0.065 | 0.055 |
| 2024-07 | 0.070 | 0.063 |
| 2025-01 | 0.104 | 0.065 |
| 2025-07 | 0.112 | 0.068 |
| 2026-01 | 0.184 | 0.075 |
| 2026-07 | 0.187 | 0.075 |
| 2027-01 | 0.308 | 0.084 |
Ephemeris comparison
Difference between NIMAv9 and JPL19 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.