(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 | 70.560306 ± 0.002076 au |
| Eccentricity | 0.539048334 ± 0.000012579 |
| Inclination | 29.460978680 ± 0.000069558 ° |
| Longitude of ascending node | 346.212740 ± 0.000133 ° |
| Argument of perihelia | 284.358989 ± 0.000678 ° |
| Mean anomaly | 348.215843 ± 0.000636 ° |
| Orbital period | 592.72 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv9 |
| Observation file |
omc_ast_NIMAv9.txt |
| bsp file | 471143_Dziewanna_nima_v9.bsp |
| Date of first observation | 2002-03-15 |
| Date of last observation | 2021-07-18 |
| Number of observations used in the fit | 431 |
| Number of rejected observations | 2 |
| Number of DES observations | 0 |
| Number of MPC observations | 199 |
| Number of unpublished observations | 234 |
| RMS of observations | 0.182 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv9 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.027 | 0.015 |
| 2021-07 | 0.023 | 0.020 |
| 2022-01 | 0.036 | 0.022 |
| 2022-07 | 0.034 | 0.028 |
| 2023-01 | 0.048 | 0.030 |
| 2023-07 | 0.048 | 0.036 |
| 2024-01 | 0.063 | 0.038 |
| 2024-07 | 0.064 | 0.046 |
| 2025-01 | 0.081 | 0.046 |
Ephemeris comparison
Difference between NIMAv9 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.