(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 | 28.919770 ± 0.000546 au |
| Eccentricity | 0.519993410 ± 0.000005011 |
| Inclination | 35.455993251 ± 0.000016114 ° |
| Longitude of ascending node | 198.064429 ± 0.000040 ° |
| Argument of perihelia | 326.423551 ± 0.001025 ° |
| Mean anomaly | 341.975949 ± 0.000685 ° |
| Orbital period | 155.53 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv8 |
| Observation file |
omc_ast_NIMAv8.txt |
| bsp file | 447178_2005RO43_nima_v8.bsp |
| Date of first observation | 2004-10-08 |
| Date of last observation | 2023-10-26 |
| Number of observations used in the fit | 493 |
| Number of rejected observations | 3 |
| Number of DES observations | 0 |
| Number of MPC observations | 445 |
| Number of unpublished observations | 51 |
| RMS of observations | 0.219 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv8 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.062 | 0.053 |
| 2023-07 | 0.062 | 0.062 |
| 2024-01 | 0.081 | 0.063 |
| 2024-07 | 0.088 | 0.067 |
| 2025-01 | 0.132 | 0.074 |
| 2025-07 | 0.141 | 0.074 |
| 2026-01 | 0.224 | 0.085 |
| 2026-07 | 0.227 | 0.081 |
| 2027-01 | 0.362 | 0.094 |
Ephemeris comparison
Difference between NIMAv8 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.