(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 | 4.01 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 41.833544 ± 0.000220 au |
| Eccentricity | 0.073144211 ± 0.000004173 |
| Inclination | 21.999813536 ± 0.000038336 ° |
| Longitude of ascending node | 250.605807 ± 0.000051 ° |
| Argument of perihelia | 292.187941 ± 0.002103 ° |
| Mean anomaly | 44.862127 ± 0.001991 ° |
| Orbital period | 270.58 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv11 |
| Observation file |
omc_ast_NIMAv11.txt |
| bsp file | 90568_2004GV9_nima_v11.bsp |
| Date of first observation | 1954-12-21 |
| Date of last observation | 2023-06-17 |
| Number of observations used in the fit | 551 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 307 |
| Number of unpublished observations | 90 |
| RMS of observations | 0.089 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv11 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.036 | 0.027 |
| 2023-07 | 0.036 | 0.029 |
| 2024-01 | 0.043 | 0.030 |
| 2024-07 | 0.043 | 0.033 |
| 2025-01 | 0.051 | 0.034 |
| 2025-07 | 0.050 | 0.037 |
| 2026-01 | 0.059 | 0.038 |
| 2026-07 | 0.059 | 0.041 |
| 2027-01 | 0.068 | 0.041 |
Ephemeris comparison
Difference between NIMAv11 and JPL18 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.