(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 | 66.978622 ± 0.003683 au |
| Eccentricity | 0.424096901 ± 0.000028366 |
| Inclination | 13.154820371 ± 0.000232554 ° |
| Longitude of ascending node | 164.056550 ± 0.000697 ° |
| Argument of perihelia | 140.439192 ± 0.001917 ° |
| Mean anomaly | 2.998219 ± 0.000906 ° |
| Orbital period | 548.17 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv8 |
| Observation file |
omc_ast_NIMAv8.txt |
| bsp file | 470599_2008OG19_nima_v8.bsp |
| Date of first observation | 2008-07-30 |
| Date of last observation | 2020-10-10 |
| Number of observations used in the fit | 371 |
| Number of rejected observations | 12 |
| Number of DES observations | 0 |
| Number of MPC observations | 314 |
| Number of unpublished observations | 69 |
| RMS of observations | 0.150 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv8 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.073 | 0.059 |
| 2021-07 | 0.101 | 0.064 |
| 2022-01 | 0.097 | 0.066 |
| 2022-07 | 0.135 | 0.073 |
| 2023-01 | 0.128 | 0.073 |
| 2023-07 | 0.175 | 0.081 |
| 2024-01 | 0.165 | 0.081 |
| 2024-07 | 0.220 | 0.090 |
| 2025-01 | 0.207 | 0.089 |
Ephemeris comparison
Difference between NIMAv8 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.