(202421) 2005UQ513


This object has a more recent orbit available here

Object

Object (202421) 2005UQ513
Diameter(1) 498 km
Dynamic class(1) cubewano
Absolute magnitude 3.50
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2458600.5
Semi major axis 43.219123 ± 0.001961 au
Eccentricity 0.147245316 ± 0.000028697
Inclination 25.704267466 ± 0.000213597 °
Longitude of ascending node 307.591922 ± 0.000800 °
Argument of perihelia 222.988636 ± 0.009901 °
Mean anomaly 226.798878 ± 0.010177 °
Orbital period 284.13 yr

Ephemeris & Observations

Ephemeris version NIMAv7
Observation file (documentation) omc_ast_NIMAv7.txt
bsp file 202421_2005UQ513_nima_v7.bsp
Date of first observation 1990-09-15
Date of last observation 2019-10-27
Number of observations used in the fit 187
Number of rejected observations 139
Number of DES observations 0
Number of MPC observations 214
Number of unpublished observations 112
RMS of observations 0.246 arcsec

Residuals

residual plot

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 0.067 0.064
2019-07 0.108 0.057
2020-01 0.075 0.070
2020-07 0.122 0.066
2021-01 0.086 0.077
2021-07 0.138 0.075
2022-01 0.100 0.084
2022-07 0.158 0.086
2023-01 0.117 0.093

Ephemeris comparison

residual plot

Difference between NIMAv7 and JPL10 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.