(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 | 7.24 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 28.793082 ± 0.000762 au |
| Eccentricity | 0.518294025 ± 0.000006103 |
| Inclination | 35.456500494 ± 0.000021853 ° |
| Longitude of ascending node | 198.070916 ± 0.000049 ° |
| Argument of perihelia | 326.625120 ± 0.001545 ° |
| Mean anomaly | 339.241922 ± 0.001041 ° |
| Orbital period | 154.50 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 447178_2005RO43_nima_v5.bsp |
| Date of first observation | 2004-10-08 |
| Date of last observation | 2022-01-20 |
| Number of observations used in the fit | 416 |
| Number of rejected observations | 3 |
| Number of DES observations | 0 |
| Number of MPC observations | 404 |
| Number of unpublished observations | 15 |
| RMS of observations | 0.165 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.079 | 0.064 |
| 2022-07 | 0.096 | 0.077 |
| 2023-01 | 0.130 | 0.079 |
| 2023-07 | 0.157 | 0.084 |
| 2024-01 | 0.225 | 0.096 |
| 2024-07 | 0.254 | 0.090 |
| 2025-01 | 0.373 | 0.115 |
| 2025-07 | 0.394 | 0.099 |
| 2026-01 | 0.585 | 0.131 |
Ephemeris comparison
Difference between NIMAv5 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.