(470308) 2007JH43
This object has a more recent orbit available here
Object
| Object | (470308) 2007JH43 |
| Diameter(1) | 558 km |
| Dynamic class(1) | otherTNO |
| Absolute magnitude | 4.50 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458200.5 |
| Semi major axis | 39.691731 ± 0.002603 au |
| Eccentricity | 0.022033731 ± 0.000050682 |
| Inclination | 18.107909718 ± 0.000445235 ° |
| Longitude of ascending node | 64.580916 ± 0.001097 ° |
| Argument of perihelia | 0.622547 ± 0.028560 ° |
| Mean anomaly | 183.785052 ± 0.029274 ° |
| Orbital period | 250.07 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 470308_2007JH43_nima_v4.bsp |
| Date of first observation | 1984-03-07 |
| Date of last observation | 2020-05-20 |
| Number of observations used in the fit | 146 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 105 |
| Number of unpublished observations | 41 |
| RMS of observations | 0.180 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2020-01 | 0.094 | 0.072 |
| 2020-07 | 0.105 | 0.081 |
| 2021-01 | 0.115 | 0.083 |
| 2021-07 | 0.116 | 0.093 |
| 2022-01 | 0.139 | 0.095 |
| 2022-07 | 0.131 | 0.106 |
| 2023-01 | 0.166 | 0.107 |
| 2023-07 | 0.152 | 0.120 |
| 2024-01 | 0.197 | 0.121 |
Ephemeris comparison
Difference between NIMAv4 and JPL7 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.