(471143) Dziewanna


Object

Object (471143) Dziewanna
Diameter(1) 470 km
Dynamic class(1) res2:7
Absolute magnitude 4.05
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2459800.5
Semi major axis 69.297978 ± 0.001932 au
Eccentricity 0.531593694 ± 0.000011854
Inclination 29.489420598 ± 0.000019384 °
Longitude of ascending node 346.325196 ± 0.000066 °
Argument of perihelia 284.906865 ± 0.000694 °
Mean anomaly 349.756511 ± 0.000558 °
Orbital period 576.88 yr

Ephemeris & Observations

Ephemeris version NIMAv13
Observation file (documentation) omc_ast_NIMAv13.txt
bsp file 471143_Dziewanna_nima_v13.bsp
Date of first observation 2002-03-15
Date of last observation 2023-06-18
Number of observations used in the fit 451
Number of rejected observations 2
Number of DES observations 0
Number of MPC observations 203
Number of unpublished observations 250
RMS of observations 0.178 arcsec

Residuals

residual plot

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 0.046 0.028
2023-07 0.045 0.035
2024-01 0.060 0.036
2024-07 0.061 0.043
2025-01 0.078 0.044
2025-07 0.079 0.052
2026-01 0.098 0.051
2026-07 0.101 0.061
2027-01 0.122 0.058

Ephemeris comparison

residual plot

Difference between NIMAv13 and JPL8 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.

Previous NIMA versions