(471325) 2011KT19
Object
| Object |
(471325) 2011KT19 |
| Diameter(1) |
161 km |
| Dynamic class(1) |
Centaur |
| Absolute magnitude |
7.20 |
| G slop |
0.15 |
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 (documentation) |
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| Number of unpublished observations |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.
Previous NIMA versions