(470599) 2008OG19
This object has a more recent orbit available here
Object
| Object | (470599) 2008OG19 |
| Diameter(1) | 509 km |
| Dynamic class(1) | SDO |
| Absolute magnitude | 4.70 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458200.5 |
| Semi major axis | 66.980693 ± 0.004676 au |
| Eccentricity | 0.424113453 ± 0.000036205 |
| Inclination | 13.154854432 ± 0.000616597 ° |
| Longitude of ascending node | 164.056407 ± 0.002114 ° |
| Argument of perihelia | 140.447669 ± 0.005011 ° |
| Mean anomaly | 2.995025 ± 0.002551 ° |
| Orbital period | 548.19 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 470599_2008OG19_nima_v6.bsp |
| Date of first observation | 2008-07-30 |
| Date of last observation | 2018-08-04 |
| Number of observations used in the fit | 133 |
| Number of rejected observations | 9 |
| Number of DES observations | 0 |
| Number of MPC observations | 100 |
| Number of unpublished observations | 42 |
| RMS of observations | 0.206 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) |
| 2019-01 | 0.274 | 0.135 |
| 2019-07 | 0.360 | 0.155 |
| 2020-01 | 0.364 | 0.157 |
| 2020-07 | 0.469 | 0.180 |
| 2021-01 | 0.468 | 0.180 |
| 2021-07 | 0.592 | 0.205 |
| 2022-01 | 0.584 | 0.203 |
| 2022-07 | 0.727 | 0.232 |
| 2023-01 | 0.714 | 0.228 |
Ephemeris comparison
Difference between NIMAv6 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.