(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 | 46.669350 ± 0.004730 au |
Eccentricity | 0.495088965 ± 0.000045865 |
Inclination | 44.827741916 ± 0.000274540 ° |
Longitude of ascending node | 233.537008 ± 0.000122 ° |
Argument of perihelia | 10.480265 ± 0.000861 ° |
Mean anomaly | 7.050097 ± 0.001240 ° |
Orbital period | 318.83 yr |
Ephemeris & Observations
Ephemeris version | NIMAv2 |
Observation file |
omc_ast_NIMAv2.txt |
bsp file | 470309_2007JK43_nima_v2.bsp |
Date of first observation | 2007-05-10 |
Date of last observation | 2019-07-29 |
Number of observations used in the fit | 128 |
Number of rejected observations | 0 |
Number of DES observations | 0 |
Number of MPC observations | 114 |
Number of unpublished observations | 14 |
RMS of observations | 0.131 arcsec |
Residuals

Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date | σα (arcsec) | σδ (arcsec) |
2019-01 | 0.113 | 0.122 |
2019-07 | 0.116 | 0.111 |
2020-01 | 0.147 | 0.132 |
2020-07 | 0.152 | 0.138 |
2021-01 | 0.192 | 0.143 |
2021-07 | 0.203 | 0.174 |
2022-01 | 0.248 | 0.159 |
2022-07 | 0.268 | 0.217 |
2023-01 | 0.315 | 0.181 |
Ephemeris comparison

Difference between NIMAv2 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.