(678191) 2017OF69
This object has a more recent orbit available here
Object
| Object | (678191) 2017OF69 |
| Diameter(1) | 655 km |
| Dynamic class(1) | plutino |
| Absolute magnitude | 4.43 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2460600.5 |
| Semi major axis | 39.466959 ± 0.001814 au |
| Eccentricity | 0.214166662 ± 0.000015608 |
| Inclination | 13.656411474 ± 0.000009488 ° |
| Longitude of ascending node | 218.872653 ± 0.000586 ° |
| Argument of perihelia | 215.754087 ± 0.010819 ° |
| Mean anomaly | 258.851643 ± 0.013596 ° |
| Orbital period | 247.95 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv10 |
| Observation file |
omc_ast_NIMAv10.txt |
| bsp file | 678191_2017OF69_nima_v10.bsp |
| Date of first observation | 2012-06-10 |
| Date of last observation | 2024-07-09 |
| Number of observations used in the fit | 345 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 314 |
| Number of unpublished observations | 31 |
| RMS of observations | 0.119 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv10 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.069 | 0.052 |
| 2024-07 | 0.074 | 0.053 |
| 2025-01 | 0.097 | 0.063 |
| 2025-07 | 0.104 | 0.065 |
| 2026-01 | 0.130 | 0.075 |
| 2026-07 | 0.142 | 0.078 |
| 2027-01 | 0.168 | 0.088 |
| 2027-07 | 0.185 | 0.093 |
| 2028-01 | 0.211 | 0.102 |
Ephemeris comparison
Difference between NIMAv10 and JPL35 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.