(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 | 70.560096 ± 0.002348 au |
| Eccentricity | 0.539046533 ± 0.000014526 |
| Inclination | 29.460977797 ± 0.000074034 ° |
| Longitude of ascending node | 346.212737 ± 0.000154 ° |
| Argument of perihelia | 284.358868 ± 0.000716 ° |
| Mean anomaly | 348.215807 ± 0.000707 ° |
| Orbital period | 592.72 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv7 |
| Observation file |
omc_ast_NIMAv7.txt |
| bsp file | 471143_Dziewanna_nima_v7.bsp |
| Date of first observation | 2002-03-15 |
| Date of last observation | 2019-05-17 |
| Number of observations used in the fit | 320 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 147 |
| Number of unpublished observations | 173 |
| RMS of observations | 0.186 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2019-01 | 0.024 | 0.007 |
| 2019-07 | 0.010 | 0.009 |
| 2020-01 | 0.025 | 0.011 |
| 2020-07 | 0.018 | 0.016 |
| 2021-01 | 0.031 | 0.019 |
| 2021-07 | 0.029 | 0.025 |
| 2022-01 | 0.043 | 0.027 |
| 2022-07 | 0.044 | 0.035 |
| 2023-01 | 0.059 | 0.037 |
Ephemeris comparison
Difference between NIMAv7 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.