(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 | 35.598128 ± 0.001910 au |
Eccentricity | 0.330222130 ± 0.000024786 |
Inclination | 110.104472228 ± 0.000134895 ° |
Longitude of ascending node | 243.757213 ± 0.000100 ° |
Argument of perihelia | 322.623506 ± 0.004159 ° |
Mean anomaly | 33.983110 ± 0.004420 ° |
Orbital period | 212.40 yr |
Ephemeris & Observations
Ephemeris version | NIMAv5 |
Observation file |
omc_ast_NIMAv5.txt |
bsp file | 471325_2011KT19_nima_v5.bsp |
Date of first observation | 2011-05-21 |
Date of last observation | 2020-06-21 |
Number of observations used in the fit | 168 |
Number of rejected observations | 0 |
Number of DES observations | 0 |
Number of MPC observations | 132 |
Number of unpublished observations | 28 |
RMS of observations | 0.143 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date | σα (arcsec) | σδ (arcsec) |
2020-01 | 0.057 | 0.079 |
2020-07 | 0.110 | 0.071 |
2021-01 | 0.064 | 0.087 |
2021-07 | 0.124 | 0.107 |
2022-01 | 0.073 | 0.112 |
2022-07 | 0.139 | 0.158 |
2023-01 | 0.083 | 0.152 |
2023-07 | 0.156 | 0.220 |
2024-01 | 0.093 | 0.205 |
Ephemeris comparison
Difference between NIMAv5 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.