(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 |
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Number of unpublished observations | 112 |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

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

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.