(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 | 35.597252 ± 0.002834 au |
| Eccentricity | 0.330210726 ± 0.000036637 |
| Inclination | 110.104502378 ± 0.000252037 ° |
| Longitude of ascending node | 243.757219 ± 0.000141 ° |
| Argument of perihelia | 322.621795 ± 0.006674 ° |
| Mean anomaly | 33.985120 ± 0.006738 ° |
| Orbital period | 212.39 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 471325_2011KT19_nima_v2.bsp |
| Date of first observation | 2011-05-21 |
| Date of last observation | 2019-06-06 |
| Number of observations used in the fit | 133 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 132 |
| Number of unpublished observations | 1 |
| RMS of observations | 0.159 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2019-01 | 0.168 | 0.226 |
| 2019-07 | 0.208 | 0.272 |
| 2020-01 | 0.194 | 0.295 |
| 2020-07 | 0.239 | 0.364 |
| 2021-01 | 0.220 | 0.378 |
| 2021-07 | 0.271 | 0.470 |
| 2022-01 | 0.246 | 0.474 |
| 2022-07 | 0.304 | 0.588 |
| 2023-01 | 0.272 | 0.583 |
Ephemeris comparison
Difference between NIMAv2 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.