(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 | 45.858489 ± 0.000218 au |
| Eccentricity | 0.145581717 ± 0.000006413 |
| Inclination | 21.520939010 ± 0.000008569 ° |
| Longitude of ascending node | 184.295690 ± 0.000090 ° |
| Argument of perihelia | 182.178443 ± 0.001385 ° |
| Mean anomaly | 275.721361 ± 0.001796 ° |
| Orbital period | 310.55 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv13 |
| Observation file |
omc_ast_NIMAv13.txt |
| bsp file | 174567_Varda_nima_v13.bsp |
| Date of first observation | 1980-03-19 |
| Date of last observation | 2023-08-11 |
| Number of observations used in the fit | 729 |
| Number of rejected observations | 19 |
| Number of DES observations | 0 |
| Number of MPC observations | 272 |
| Number of unpublished observations | 198 |
| RMS of observations | 0.096 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv13 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.035 | 0.013 |
| 2023-07 | 0.037 | 0.015 |
| 2024-01 | 0.044 | 0.016 |
| 2024-07 | 0.047 | 0.018 |
| 2025-01 | 0.054 | 0.018 |
| 2025-07 | 0.058 | 0.020 |
| 2026-01 | 0.065 | 0.020 |
| 2026-07 | 0.070 | 0.023 |
| 2027-01 | 0.078 | 0.023 |
Ephemeris comparison
Difference between NIMAv13 and JPL12 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.