(174567) Varda
This object has a more recent orbit available here
Object
| Object | (174567) Varda |
| Diameter(1) | 705 km |
| Dynamic class(1) | cubewano |
| Absolute magnitude | 3.40 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458200.5 |
| Semi major axis | 46.045685 ± 0.001357 au |
| Eccentricity | 0.140253737 ± 0.000012232 |
| Inclination | 21.497782740 ± 0.000277065 ° |
| Longitude of ascending node | 183.978276 ± 0.000735 ° |
| Argument of perihelia | 180.718500 ± 0.008209 ° |
| Mean anomaly | 271.847231 ± 0.007950 ° |
| Orbital period | 312.46 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 174567_Varda_nima_v6.bsp |
| Date of first observation | 1980-03-19 |
| Date of last observation | 2018-09-07 |
| Number of observations used in the fit | 349 |
| Number of rejected observations | 13 |
| Number of DES observations | 0 |
| Number of MPC observations | 0 |
| Number of unpublished observations | 103 |
| RMS of observations | 0.205 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.052 | 0.041 |
| 2018-07 | 0.045 | 0.037 |
| 2019-01 | 0.067 | 0.045 |
| 2019-07 | 0.059 | 0.043 |
| 2020-01 | 0.084 | 0.050 |
| 2020-07 | 0.076 | 0.049 |
| 2021-01 | 0.103 | 0.055 |
| 2021-07 | 0.096 | 0.055 |
| 2022-01 | 0.125 | 0.061 |
Ephemeris comparison
Difference between NIMAv6 and JPL7 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.