(471325) 2011KT19
Object
| Object |
(471325) 2011KT19 |
| Diameter(1) |
177 km |
| Dynamic class(1) |
Centaur |
| Absolute magnitude |
7.47 |
| G slop |
0.15 |
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 (documentation) |
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| Number of unpublished observations |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.
Previous NIMA versions