(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 | 46.673188 ± 0.002347 au |
| Eccentricity | 0.495126717 ± 0.000022708 |
| Inclination | 44.827743029 ± 0.000117335 ° |
| Longitude of ascending node | 233.536993 ± 0.000071 ° |
| Argument of perihelia | 10.480690 ± 0.000493 ° |
| Mean anomaly | 7.049104 ± 0.000647 ° |
| Orbital period | 318.87 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 470309_2007JK43_nima_v5.bsp |
| Date of first observation | 2007-05-10 |
| Date of last observation | 2021-08-02 |
| Number of observations used in the fit | 313 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 279 |
| Number of unpublished observations | 34 |
| RMS of observations | 0.109 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.046 | 0.043 |
| 2021-07 | 0.039 | 0.020 |
| 2022-01 | 0.068 | 0.038 |
| 2022-07 | 0.070 | 0.039 |
| 2023-01 | 0.097 | 0.036 |
| 2023-07 | 0.106 | 0.063 |
| 2024-01 | 0.132 | 0.041 |
| 2024-07 | 0.150 | 0.090 |
| 2025-01 | 0.173 | 0.053 |
Ephemeris comparison
Difference between NIMAv5 and JPL9 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.