(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 | 35.597852 ± 0.002309 au |
| Eccentricity | 0.330218115 ± 0.000030689 |
| Inclination | 110.104486231 ± 0.000163532 ° |
| Longitude of ascending node | 243.757216 ± 0.000120 ° |
| Argument of perihelia | 322.623100 ± 0.004538 ° |
| Mean anomaly | 33.983693 ± 0.005171 ° |
| Orbital period | 212.39 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 471325_2011KT19_nima_v4.bsp |
| Date of first observation | 2011-05-21 |
| Date of last observation | 2020-04-20 |
| Number of observations used in the fit | 143 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 132 |
| Number of unpublished observations | 11 |
| RMS of observations | 0.154 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2019-01 | 0.060 | 0.093 |
| 2019-07 | 0.141 | 0.071 |
| 2020-01 | 0.068 | 0.090 |
| 2020-07 | 0.158 | 0.095 |
| 2021-01 | 0.078 | 0.101 |
| 2021-07 | 0.177 | 0.140 |
| 2022-01 | 0.090 | 0.129 |
| 2022-07 | 0.198 | 0.199 |
| 2023-01 | 0.104 | 0.176 |
Ephemeris comparison
Difference between NIMAv4 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.