(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 | 46.672411 ± 0.002548 au |
| Eccentricity | 0.495119048 ± 0.000024689 |
| Inclination | 44.827737724 ± 0.000132402 ° |
| Longitude of ascending node | 233.536992 ± 0.000073 ° |
| Argument of perihelia | 10.480690 ± 0.000501 ° |
| Mean anomaly | 7.049280 ± 0.000683 ° |
| Orbital period | 318.86 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv3 |
| Observation file |
omc_ast_NIMAv3.txt |
| bsp file | 470309_2007JK43_nima_v3.bsp |
| Date of first observation | 2007-05-10 |
| Date of last observation | 2020-07-21 |
| Number of observations used in the fit | 292 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 276 |
| Number of unpublished observations | 16 |
| RMS of observations | 0.110 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2020-01 | 0.036 | 0.053 |
| 2020-07 | 0.019 | 0.008 |
| 2021-01 | 0.053 | 0.047 |
| 2021-07 | 0.045 | 0.023 |
| 2022-01 | 0.078 | 0.040 |
| 2022-07 | 0.080 | 0.045 |
| 2023-01 | 0.112 | 0.037 |
| 2023-07 | 0.123 | 0.072 |
| 2024-01 | 0.152 | 0.042 |
Ephemeris comparison
Difference between NIMAv3 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.