(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Number of unpublished observations | 16 |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.