(471325) 2011KT19
This object has a more recent orbit available here
Object
| Object | (471325) 2011KT19 |
| Diameter(1) | 177 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) | 2460600.5 |
| Semi major axis | 35.713573 ± 0.001539 au |
| Eccentricity | 0.332505598 ± 0.000020346 |
| Inclination | 110.310892472 ± 0.000053919 ° |
| Longitude of ascending node | 243.902525 ± 0.000025 ° |
| Argument of perihelia | 322.913087 ± 0.003203 ° |
| Mean anomaly | 42.883789 ± 0.004094 ° |
| Orbital period | 213.43 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv9 |
| Observation file |
omc_ast_NIMAv9.txt |
| bsp file | 471325_2011KT19_nima_v9.bsp |
| Date of first observation | 2010-05-10 |
| Date of last observation | 2024-05-27 |
| Number of observations used in the fit | 304 |
| Number of rejected observations | 10 |
| Number of DES observations | 0 |
| Number of MPC observations | 262 |
| Number of unpublished observations | 44 |
| RMS of observations | 0.134 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv9 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.071 | 0.132 |
| 2024-07 | 0.102 | 0.180 |
| 2025-01 | 0.078 | 0.169 |
| 2025-07 | 0.114 | 0.227 |
| 2026-01 | 0.086 | 0.210 |
| 2026-07 | 0.127 | 0.278 |
| 2027-01 | 0.094 | 0.257 |
| 2027-07 | 0.141 | 0.334 |
| 2028-01 | 0.102 | 0.309 |
Ephemeris comparison
Difference between NIMAv9 and JPL14 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.