(471325) 2011KT19
This object has a more recent orbit available here
Object
| Object | (471325) 2011KT19 |
| Diameter(1) | 161 km |
| Dynamic class(1) | Centaur |
| Absolute magnitude | 7.20 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 35.597315 ± 0.001345 au |
| Eccentricity | 0.330212230 ± 0.000017391 |
| Inclination | 110.104485340 ± 0.000087735 ° |
| Longitude of ascending node | 243.757217 ± 0.000066 ° |
| Argument of perihelia | 322.621793 ± 0.002884 ° |
| Mean anomaly | 33.985003 ± 0.003116 ° |
| Orbital period | 212.39 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 471325_2011KT19_nima_v6.bsp |
| Date of first observation | 2010-05-10 |
| Date of last observation | 2020-08-13 |
| Number of observations used in the fit | 280 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 238 |
| Number of unpublished observations | 34 |
| RMS of observations | 0.131 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2020-01 | 0.048 | 0.059 |
| 2020-07 | 0.070 | 0.055 |
| 2021-01 | 0.053 | 0.067 |
| 2021-07 | 0.078 | 0.079 |
| 2022-01 | 0.060 | 0.085 |
| 2022-07 | 0.088 | 0.113 |
| 2023-01 | 0.067 | 0.112 |
| 2023-07 | 0.098 | 0.154 |
| 2024-01 | 0.074 | 0.146 |
Ephemeris comparison
Difference between NIMAv6 and JPL8 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.