(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) | 2456991.26373985 |
| Semi major axis | 42.058051 ± 0.000224 au |
| Eccentricity | 0.079950436 ± 0.000004222 |
| Inclination | 21.999097898 ± 0.000040943 ° |
| Longitude of ascending node | 250.576825 ± 0.000054 ° |
| Argument of perihelia | 291.836987 ± 0.002012 ° |
| Mean anomaly | 34.471635 ± 0.001832 ° |
| Orbital period | 272.76 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv10 |
| Observation file |
omc_ast_NIMAv10.txt |
| bsp file | 90568_2004GV9_nima_v10.bsp |
| Date of first observation | 1954-12-21 |
| Date of last observation | 2022-05-06 |
| Number of observations used in the fit | 494 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 255 |
| Number of unpublished observations | 85 |
| RMS of observations | 0.089 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv10 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.033 | 0.025 |
| 2022-07 | 0.033 | 0.027 |
| 2023-01 | 0.040 | 0.029 |
| 2023-07 | 0.040 | 0.032 |
| 2024-01 | 0.048 | 0.033 |
| 2024-07 | 0.048 | 0.036 |
| 2025-01 | 0.056 | 0.036 |
| 2025-07 | 0.056 | 0.040 |
| 2026-01 | 0.065 | 0.040 |
Ephemeris comparison
Difference between NIMAv10 and JPL16 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.