(84922) 2003VS2


Object

Object (84922) 2003VS2
Diameter(1) 523 km
Dynamic class(1) plutino
Absolute magnitude 4.20
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2458600.5
Semi major axis 39.216914 ± 0.000337 au
Eccentricity 0.071657214 ± 0.000006012
Inclination 14.818601485 ± 0.000059854 °
Longitude of ascending node 302.629055 ± 0.000318 °
Argument of perihelia 111.024088 ± 0.003963 °
Mean anomaly 23.484531 ± 0.003532 °
Orbital period 245.59 yr

Ephemeris & Observations

Ephemeris version NIMAv9
Observation file (documentation) omc_ast_NIMAv9.txt
bsp file 84922_2003VS2_nima_v9.bsp
Date of first observation 1991-09-17
Date of last observation 2019-10-08
Number of observations used in the fit 329
Number of rejected observations 15
Number of DES observations 0
Number of MPC observations 205
Number of unpublished observations 138
RMS of observations 0.237 arcsec

Residuals

residual plot

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)
2019-01 0.043 0.027
2019-07 0.046 0.028
2020-01 0.055 0.032
2020-07 0.058 0.033
2021-01 0.067 0.038
2021-07 0.071 0.039
2022-01 0.081 0.044
2022-07 0.084 0.045
2023-01 0.095 0.050

Ephemeris comparison

residual plot

Difference between NIMAv9 and JPL30 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