(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 | 66.979573 ± 0.004712 au |
| Eccentricity | 0.424104161 ± 0.000036501 |
| Inclination | 13.154806725 ± 0.000725723 ° |
| Longitude of ascending node | 164.056590 ± 0.002495 ° |
| Argument of perihelia | 140.442911 ± 0.005862 ° |
| Mean anomaly | 2.996777 ± 0.003021 ° |
| Orbital period | 548.18 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 470599_2008OG19_nima_v5.bsp |
| Date of first observation | 2008-07-30 |
| Date of last observation | 2015-09-10 |
| Number of observations used in the fit | 130 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 97 |
| Number of unpublished observations | 34 |
| RMS of observations | 0.187 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.244 | 0.119 |
| 2018-07 | 0.329 | 0.139 |
| 2019-01 | 0.340 | 0.143 |
| 2019-07 | 0.445 | 0.165 |
| 2020-01 | 0.451 | 0.166 |
| 2020-07 | 0.578 | 0.192 |
| 2021-01 | 0.578 | 0.191 |
| 2021-07 | 0.727 | 0.220 |
| 2022-01 | 0.720 | 0.216 |
Ephemeris comparison
Difference between NIMAv5 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.