(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 | 7.29 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2457285.262689487 |
| Semi major axis | 46.311001 ± 0.001095 au |
| Eccentricity | 0.491456109 ± 0.000010742 |
| Inclination | 44.874600649 ± 0.000012728 ° |
| Longitude of ascending node | 233.572802 ± 0.000022 ° |
| Argument of perihelia | 10.138837 ± 0.000279 ° |
| Mean anomaly | 4.369070 ± 0.000226 ° |
| Orbital period | 315.16 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv7 |
| Observation file |
omc_ast_NIMAv7.txt |
| bsp file | 470309_2007JK43_nima_v7.bsp |
| Date of first observation | 2007-05-10 |
| Date of last observation | 2022-11-04 |
| Number of observations used in the fit | 322 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 279 |
| Number of unpublished observations | 43 |
| RMS of observations | 0.110 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.017 | 0.010 |
| 2022-07 | 0.014 | 0.018 |
| 2023-01 | 0.022 | 0.006 |
| 2023-07 | 0.022 | 0.027 |
| 2024-01 | 0.029 | 0.008 |
| 2024-07 | 0.032 | 0.038 |
| 2025-01 | 0.040 | 0.016 |
| 2025-07 | 0.046 | 0.051 |
| 2026-01 | 0.052 | 0.026 |
Ephemeris comparison
Difference between NIMAv7 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.