(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 | 35.597546 ± 0.002417 au |
Eccentricity | 0.330213811 ± 0.000032891 |
Inclination | 110.104525892 ± 0.000182525 ° |
Longitude of ascending node | 243.757224 ± 0.000127 ° |
Argument of perihelia | 322.622609 ± 0.004562 ° |
Mean anomaly | 33.984355 ± 0.005297 ° |
Orbital period | 212.39 yr |
Ephemeris & Observations
Ephemeris version | NIMAv3 |
Observation file |
omc_ast_NIMAv3.txt |
bsp file | 471325_2011KT19_nima_v3.bsp |
Date of first observation | 2011-05-21 |
Date of last observation | 2020-02-23 |
Number of observations used in the fit | 136 |
Number of rejected observations | 0 |
Number of DES observations | 0 |
Number of MPC observations | 132 |
Number of unpublished observations | 4 |
RMS of observations | 0.157 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date | σα (arcsec) | σδ (arcsec) |
2019-01 | 0.082 | 0.098 |
2019-07 | 0.177 | 0.108 |
2020-01 | 0.096 | 0.107 |
2020-07 | 0.201 | 0.150 |
2021-01 | 0.112 | 0.134 |
2021-07 | 0.226 | 0.209 |
2022-01 | 0.129 | 0.180 |
2022-07 | 0.253 | 0.283 |
2023-01 | 0.148 | 0.243 |
Ephemeris comparison
Difference between NIMAv3 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.