(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 | 46.046144 ± 0.000765 au |
| Eccentricity | 0.140247797 ± 0.000007964 |
| Inclination | 21.497783249 ± 0.000146200 ° |
| Longitude of ascending node | 183.978233 ± 0.000535 ° |
| Argument of perihelia | 180.715634 ± 0.004927 ° |
| Mean anomaly | 271.849567 ± 0.004983 ° |
| Orbital period | 312.46 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv10 |
| Observation file |
omc_ast_NIMAv10.txt |
| bsp file | 174567_Varda_nima_v10.bsp |
| Date of first observation | 1980-03-19 |
| Date of last observation | 2021-07-14 |
| Number of observations used in the fit | 409 |
| Number of rejected observations | 21 |
| Number of DES observations | 0 |
| Number of MPC observations | 265 |
| Number of unpublished observations | 165 |
| RMS of observations | 0.176 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) |
| 2021-01 | 0.048 | 0.015 |
| 2021-07 | 0.043 | 0.016 |
| 2022-01 | 0.060 | 0.018 |
| 2022-07 | 0.056 | 0.020 |
| 2023-01 | 0.073 | 0.022 |
| 2023-07 | 0.070 | 0.025 |
| 2024-01 | 0.087 | 0.025 |
| 2024-07 | 0.087 | 0.029 |
| 2025-01 | 0.104 | 0.029 |
Ephemeris comparison
Difference between NIMAv10 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.