(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 | 46.046360 ± 0.001022 au |
| Eccentricity | 0.140249188 ± 0.000010006 |
| Inclination | 21.497792236 ± 0.000220191 ° |
| Longitude of ascending node | 183.978340 ± 0.000616 ° |
| Argument of perihelia | 180.714182 ± 0.006027 ° |
| Mean anomaly | 271.851134 ± 0.005837 ° |
| Orbital period | 312.46 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv9 |
| Observation file |
omc_ast_NIMAv9.txt |
| bsp file | 174567_Varda_nima_v9.bsp |
| Date of first observation | 1980-03-19 |
| Date of last observation | 2020-08-30 |
| Number of observations used in the fit | 399 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 0 |
| Number of unpublished observations | 141 |
| RMS of observations | 0.305 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) |
| 2020-01 | 0.059 | 0.019 |
| 2020-07 | 0.049 | 0.018 |
| 2021-01 | 0.074 | 0.021 |
| 2021-07 | 0.065 | 0.022 |
| 2022-01 | 0.091 | 0.024 |
| 2022-07 | 0.084 | 0.026 |
| 2023-01 | 0.110 | 0.027 |
| 2023-07 | 0.104 | 0.030 |
| 2024-01 | 0.131 | 0.030 |
Ephemeris comparison
Difference between NIMAv9 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.