(90568) 2004GV9
This object has a more recent orbit available here
Object
| Object | (90568) 2004GV9 |
| Diameter(1) | 680 km |
| Dynamic class(1) | cubewano-hot |
| Absolute magnitude | 4.00 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2460600.5 |
| Semi major axis | 41.742796 ± 0.000666 au |
| Eccentricity | 0.074040463 ± 0.000011506 |
| Inclination | 22.045088527 ± 0.000040437 ° |
| Longitude of ascending node | 250.572484 ± 0.000053 ° |
| Argument of perihelia | 289.413867 ± 0.003941 ° |
| Mean anomaly | 50.259420 ± 0.004512 ° |
| Orbital period | 269.70 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv12 |
| Observation file |
omc_ast_NIMAv12.txt |
| bsp file | 90568_2004GV9_nima_v12.bsp |
| Date of first observation | 1954-12-21 |
| Date of last observation | 2024-07-06 |
| Number of observations used in the fit | 441 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 343 |
| Number of unpublished observations | 99 |
| RMS of observations | 0.212 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv12 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.059 | 0.035 |
| 2024-07 | 0.046 | 0.039 |
| 2025-01 | 0.071 | 0.039 |
| 2025-07 | 0.057 | 0.043 |
| 2026-01 | 0.085 | 0.043 |
| 2026-07 | 0.070 | 0.047 |
| 2027-01 | 0.100 | 0.047 |
| 2027-07 | 0.085 | 0.052 |
| 2028-01 | 0.117 | 0.051 |
Ephemeris comparison
Difference between NIMAv12 and JPL22 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.