(470309) 2007JK43
This object has a more recent orbit available here
Object
| Object | (470309) 2007JK43 |
| Diameter(1) | 176 km |
| Dynamic class(1) | Centaur |
| Absolute magnitude | 7.00 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458200.5 |
| Semi major axis | 46.669757 ± 0.004922 au |
| Eccentricity | 0.495092956 ± 0.000047712 |
| Inclination | 44.827716149 ± 0.000322982 ° |
| Longitude of ascending node | 233.536998 ± 0.000129 ° |
| Argument of perihelia | 10.480852 ± 0.001293 ° |
| Mean anomaly | 7.049832 ± 0.001305 ° |
| Orbital period | 318.83 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 470309_2007JK43_nima_v1.bsp |
| Date of first observation | 2007-05-10 |
| Date of last observation | 2018-06-15 |
| Number of observations used in the fit | 114 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 114 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.133 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.178 | 0.152 |
| 2018-07 | 0.194 | 0.173 |
| 2019-01 | 0.237 | 0.182 |
| 2019-07 | 0.259 | 0.222 |
| 2020-01 | 0.307 | 0.218 |
| 2020-07 | 0.337 | 0.279 |
| 2021-01 | 0.389 | 0.259 |
| 2021-07 | 0.428 | 0.342 |
| 2022-01 | 0.481 | 0.305 |
Ephemeris comparison
Difference between NIMAv1 and JPL6 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.