(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 | 7.47 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 35.745849 ± 0.001816 au |
| Eccentricity | 0.331184122 ± 0.000023973 |
| Inclination | 110.250513124 ± 0.000059816 ° |
| Longitude of ascending node | 243.853976 ± 0.000025 ° |
| Argument of perihelia | 323.324833 ± 0.003723 ° |
| Mean anomaly | 39.008646 ± 0.004539 ° |
| Orbital period | 213.72 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv7 |
| Observation file |
omc_ast_NIMAv7.txt |
| bsp file | 471325_2011KT19_nima_v7.bsp |
| Date of first observation | 2010-05-10 |
| Date of last observation | 2021-06-08 |
| Number of observations used in the fit | 287 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 255 |
| Number of unpublished observations | 24 |
| RMS of observations | 0.137 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.076 | 0.096 |
| 2022-07 | 0.085 | 0.114 |
| 2023-01 | 0.083 | 0.118 |
| 2023-07 | 0.096 | 0.152 |
| 2024-01 | 0.091 | 0.148 |
| 2024-07 | 0.107 | 0.197 |
| 2025-01 | 0.098 | 0.185 |
| 2025-07 | 0.119 | 0.247 |
| 2026-01 | 0.106 | 0.228 |
Ephemeris comparison
Difference between NIMAv7 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.