(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 | 42.261715 ± 0.000927 au |
| Eccentricity | 0.081732848 ± 0.000016546 |
| Inclination | 21.928186531 ± 0.000171992 ° |
| Longitude of ascending node | 250.668742 ± 0.000493 ° |
| Argument of perihelia | 295.489825 ± 0.002813 ° |
| Mean anomaly | 35.419070 ± 0.002919 ° |
| Orbital period | 274.74 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv8 |
| Observation file |
omc_ast_NIMAv8.txt |
| bsp file | 90568_2004GV9_nima_v8.bsp |
| Date of first observation | 1954-12-21 |
| Date of last observation | 2019-07-02 |
| Number of observations used in the fit | 150 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 99 |
| Number of unpublished observations | 52 |
| RMS of observations | 0.322 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) |
| 2020-01 | 0.102 | 0.047 |
| 2020-07 | 0.069 | 0.053 |
| 2021-01 | 0.125 | 0.053 |
| 2021-07 | 0.090 | 0.060 |
| 2022-01 | 0.151 | 0.059 |
| 2022-07 | 0.115 | 0.067 |
| 2023-01 | 0.181 | 0.066 |
| 2023-07 | 0.144 | 0.074 |
| 2024-01 | 0.213 | 0.074 |
Ephemeris comparison
Difference between NIMAv8 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.