(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 | 35.597607 ± 0.003108 au |
| Eccentricity | 0.330225782 ± 0.000038010 |
| Inclination | 110.104509117 ± 0.000474903 ° |
| Longitude of ascending node | 243.757222 ± 0.000173 ° |
| Argument of perihelia | 322.619166 ± 0.013844 ° |
| Mean anomaly | 33.985559 ± 0.009691 ° |
| Orbital period | 212.39 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 471325_2011KT19_nima_v1.bsp |
| Date of first observation | 2011-05-21 |
| Date of last observation | 2016-04-03 |
| Number of observations used in the fit | 132 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 132 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.160 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.183 | 0.479 |
| 2018-07 | 0.290 | 0.686 |
| 2019-01 | 0.223 | 0.710 |
| 2019-07 | 0.354 | 0.969 |
| 2020-01 | 0.266 | 0.981 |
| 2020-07 | 0.424 | 1.287 |
| 2021-01 | 0.312 | 1.285 |
| 2021-07 | 0.499 | 1.636 |
| 2022-01 | 0.362 | 1.620 |
Ephemeris comparison
Difference between NIMAv1 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.