(90568) 2004GV9
This object has a more recent orbit available here
Object
| Object | (90568) 2004GV9 |
| Diameter(1) | 680 km |
| Dynamic class(1) | cubewano |
| Absolute magnitude | 3.80 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458200.5 |
| Semi major axis | 42.261814 ± 0.000996 au |
| Eccentricity | 0.081734751 ± 0.000017886 |
| Inclination | 21.928188899 ± 0.000195817 ° |
| Longitude of ascending node | 250.668739 ± 0.000560 ° |
| Argument of perihelia | 295.489688 ± 0.003169 ° |
| Mean anomaly | 35.419059 ± 0.002982 ° |
| Orbital period | 274.75 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 90568_2004GV9_nima_v6.bsp |
| Date of first observation | 1954-12-21 |
| Date of last observation | 2017-07-27 |
| Number of observations used in the fit | 133 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 97 |
| Number of unpublished observations | 37 |
| RMS of observations | 0.329 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) |
| 2018-01 | 0.089 | 0.045 |
| 2018-07 | 0.057 | 0.052 |
| 2019-01 | 0.112 | 0.051 |
| 2019-07 | 0.075 | 0.060 |
| 2020-01 | 0.139 | 0.059 |
| 2020-07 | 0.099 | 0.068 |
| 2021-01 | 0.168 | 0.067 |
| 2021-07 | 0.127 | 0.076 |
| 2022-01 | 0.201 | 0.075 |
Ephemeris comparison
Difference between NIMAv6 and JPL10 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.