(10199) Chariklo
This object has a more recent orbit available here
Object
| Object | (10199) Chariklo |
| Diameter(1) | 242 km |
| Dynamic class(1) | Centaur |
| Absolute magnitude | 6.70 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 15.841610 ± 0.000002 au |
| Eccentricity | 0.170616621 ± 0.000000108 |
| Inclination | 23.358559564 ± 0.000002666 ° |
| Longitude of ascending node | 300.432504 ± 0.000005 ° |
| Argument of perihelia | 243.357980 ± 0.000028 ° |
| Mean anomaly | 86.739975 ± 0.000043 ° |
| Orbital period | 63.05 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv18 |
| Observation file |
omc_ast_NIMAv18.txt |
| bsp file | 10199_Chariklo_nima_v18.bsp |
| Date of first observation | 1988-11-05 |
| Date of last observation | 2020-06-19 |
| Number of observations used in the fit | 1193 |
| Number of rejected observations | 23 |
| Number of DES observations | 0 |
| Number of MPC observations | 668 |
| Number of unpublished observations | 548 |
| RMS of observations | 0.376 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv18 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2020-01 | 0.002 | 0.002 |
| 2020-07 | 0.003 | 0.003 |
| 2021-01 | 0.003 | 0.003 |
| 2021-07 | 0.005 | 0.004 |
| 2022-01 | 0.005 | 0.004 |
| 2022-07 | 0.007 | 0.005 |
| 2023-01 | 0.006 | 0.005 |
| 2023-07 | 0.009 | 0.007 |
| 2024-01 | 0.008 | 0.007 |
Ephemeris comparison
Difference between NIMAv18 and JPL29 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.