(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 | 35.746465 ± 0.001544 au |
| Eccentricity | 0.331192165 ± 0.000020562 |
| Inclination | 110.250525288 ± 0.000054009 ° |
| Longitude of ascending node | 243.853980 ± 0.000025 ° |
| Argument of perihelia | 323.326011 ± 0.003200 ° |
| Mean anomaly | 39.007118 ± 0.003856 ° |
| Orbital period | 213.73 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv8 |
| Observation file |
omc_ast_NIMAv8.txt |
| bsp file | 471325_2011KT19_nima_v8.bsp |
| Date of first observation | 2010-05-10 |
| Date of last observation | 2023-06-21 |
| Number of observations used in the fit | 301 |
| Number of rejected observations | 10 |
| Number of DES observations | 0 |
| Number of MPC observations | 259 |
| Number of unpublished observations | 44 |
| RMS of observations | 0.134 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv8 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.064 | 0.103 |
| 2023-07 | 0.092 | 0.140 |
| 2024-01 | 0.071 | 0.134 |
| 2024-07 | 0.103 | 0.183 |
| 2025-01 | 0.078 | 0.171 |
| 2025-07 | 0.115 | 0.230 |
| 2026-01 | 0.086 | 0.214 |
| 2026-07 | 0.128 | 0.283 |
| 2027-01 | 0.094 | 0.262 |
Ephemeris comparison
Difference between NIMAv8 and JPL13 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.