(471143) Dziewanna
This object has a more recent orbit available here
Object
| Object | (471143) Dziewanna |
| Diameter(1) | 470 km |
| Dynamic class(1) | res2:7 |
| Absolute magnitude | 3.90 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 70.559964 ± 0.002232 au |
| Eccentricity | 0.539045807 ± 0.000013764 |
| Inclination | 29.460978971 ± 0.000072386 ° |
| Longitude of ascending node | 346.212742 ± 0.000148 ° |
| Argument of perihelia | 284.358914 ± 0.000699 ° |
| Mean anomaly | 348.215762 ± 0.000674 ° |
| Orbital period | 592.71 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv8 |
| Observation file |
omc_ast_NIMAv8.txt |
| bsp file | 471143_Dziewanna_nima_v8.bsp |
| Date of first observation | 2002-03-15 |
| Date of last observation | 2020-08-29 |
| Number of observations used in the fit | 385 |
| Number of rejected observations | 2 |
| Number of DES observations | 0 |
| Number of MPC observations | 199 |
| Number of unpublished observations | 188 |
| RMS of observations | 0.191 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv8 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2020-01 | 0.024 | 0.011 |
| 2020-07 | 0.017 | 0.015 |
| 2021-01 | 0.030 | 0.018 |
| 2021-07 | 0.028 | 0.023 |
| 2022-01 | 0.041 | 0.026 |
| 2022-07 | 0.042 | 0.033 |
| 2023-01 | 0.057 | 0.035 |
| 2023-07 | 0.059 | 0.043 |
| 2024-01 | 0.076 | 0.044 |
Ephemeris comparison
Difference between NIMAv8 and JPL5 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.