(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 | 46.310605 ± 0.001891 au |
Eccentricity | 0.491451902 ± 0.000018546 |
Inclination | 44.874594391 ± 0.000022900 ° |
Longitude of ascending node | 233.572798 ± 0.000026 ° |
Argument of perihelia | 10.139078 ± 0.000577 ° |
Mean anomaly | 4.369056 ± 0.000404 ° |
Orbital period | 315.16 yr |
Ephemeris & Observations
Ephemeris version | NIMAv6 |
Observation file |
omc_ast_NIMAv6.txt |
bsp file | 470309_2007JK43_nima_v6.bsp |
Date of first observation | 2007-05-10 |
Date of last observation | 2022-05-06 |
Number of observations used in the fit | 321 |
Number of rejected observations | 0 |
Number of DES observations | 0 |
Number of MPC observations | 279 |
Number of unpublished observations | 42 |
RMS of observations | 0.110 arcsec |
Residuals

Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date | σα (arcsec) | σδ (arcsec) |
2022-01 | 0.046 | 0.032 |
2022-07 | 0.049 | 0.030 |
2023-01 | 0.066 | 0.034 |
2023-07 | 0.074 | 0.047 |
2024-01 | 0.090 | 0.040 |
2024-07 | 0.104 | 0.065 |
2025-01 | 0.118 | 0.050 |
2025-07 | 0.138 | 0.086 |
2026-01 | 0.151 | 0.062 |
Ephemeris comparison

Difference between NIMAv6 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.