(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 | 66.978743 ± 0.003659 au |
| Eccentricity | 0.424097684 ± 0.000028146 |
| Inclination | 13.154838646 ± 0.000196863 ° |
| Longitude of ascending node | 164.056481 ± 0.000524 ° |
| Argument of perihelia | 140.438535 ± 0.001521 ° |
| Mean anomaly | 2.998476 ± 0.000717 ° |
| Orbital period | 548.17 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv9 |
| Observation file |
omc_ast_NIMAv9.txt |
| bsp file | 470599_2008OG19_nima_v9.bsp |
| Date of first observation | 2008-07-30 |
| Date of last observation | 2021-08-03 |
| Number of observations used in the fit | 393 |
| Number of rejected observations | 10 |
| Number of DES observations | 0 |
| Number of MPC observations | 314 |
| Number of unpublished observations | 89 |
| RMS of observations | 0.153 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv9 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.045 | 0.041 |
| 2021-07 | 0.056 | 0.044 |
| 2022-01 | 0.056 | 0.046 |
| 2022-07 | 0.077 | 0.049 |
| 2023-01 | 0.073 | 0.051 |
| 2023-07 | 0.103 | 0.055 |
| 2024-01 | 0.097 | 0.057 |
| 2024-07 | 0.135 | 0.062 |
| 2025-01 | 0.126 | 0.062 |
Ephemeris comparison
Difference between NIMAv9 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.