(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 | 3.48 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 45.858133 ± 0.000745 au |
| Eccentricity | 0.145584527 ± 0.000007824 |
| Inclination | 21.520942794 ± 0.000013943 ° |
| Longitude of ascending node | 184.295743 ± 0.000160 ° |
| Argument of perihelia | 182.180452 ± 0.004645 ° |
| Mean anomaly | 275.719588 ± 0.004660 ° |
| Orbital period | 310.55 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv12 |
| Observation file |
omc_ast_NIMAv12.txt |
| bsp file | 174567_Varda_nima_v12.bsp |
| Date of first observation | 1980-03-19 |
| Date of last observation | 2021-07-31 |
| Number of observations used in the fit | 433 |
| Number of rejected observations | 10 |
| Number of DES observations | 0 |
| Number of MPC observations | 272 |
| Number of unpublished observations | 171 |
| RMS of observations | 0.175 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) |
| 2022-01 | 0.050 | 0.017 |
| 2022-07 | 0.047 | 0.019 |
| 2023-01 | 0.061 | 0.021 |
| 2023-07 | 0.059 | 0.023 |
| 2024-01 | 0.073 | 0.025 |
| 2024-07 | 0.073 | 0.028 |
| 2025-01 | 0.087 | 0.029 |
| 2025-07 | 0.089 | 0.032 |
| 2026-01 | 0.102 | 0.032 |
Ephemeris comparison
Difference between NIMAv12 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.