(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 | 42.261856 ± 0.000690 au |
| Eccentricity | 0.081735335 ± 0.000012075 |
| Inclination | 21.928167498 ± 0.000120863 ° |
| Longitude of ascending node | 250.668775 ± 0.000335 ° |
| Argument of perihelia | 295.490205 ± 0.002533 ° |
| Mean anomaly | 35.418538 ± 0.002816 ° |
| Orbital period | 274.75 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv9 |
| Observation file |
omc_ast_NIMAv9.txt |
| bsp file | 90568_2004GV9_nima_v9.bsp |
| Date of first observation | 1954-12-21 |
| Date of last observation | 2021-06-19 |
| Number of observations used in the fit | 333 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 255 |
| Number of unpublished observations | 79 |
| RMS of observations | 0.223 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 | 0.056 | 0.034 |
| 2021-07 | 0.040 | 0.037 |
| 2022-01 | 0.069 | 0.038 |
| 2022-07 | 0.049 | 0.042 |
| 2023-01 | 0.084 | 0.042 |
| 2023-07 | 0.062 | 0.047 |
| 2024-01 | 0.101 | 0.046 |
| 2024-07 | 0.078 | 0.052 |
| 2025-01 | 0.120 | 0.051 |
Ephemeris comparison
Difference between NIMAv9 and JPL14 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.