(202421) 2005UQ513


Object

Object (202421) 2005UQ513
Diameter(1) 498 km
Dynamic class(1) cubewano
Absolute magnitude 3.97
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2460200.5
Semi major axis 43.649400 ± 0.000195 au
Eccentricity 0.141152537 ± 0.000004691
Inclination 25.709347422 ± 0.000006200 °
Longitude of ascending node 307.705863 ± 0.000064 °
Argument of perihelia 219.380703 ± 0.001856 °
Mean anomaly 236.074989 ± 0.002460 °
Orbital period 288.39 yr

Ephemeris & Observations

Ephemeris version NIMAv13
Observation file (documentation) omc_ast_NIMAv13.txt
bsp file 202421_2005UQ513_nima_v13.bsp
Date of first observation 1990-09-15
Date of last observation 2023-11-15
Number of observations used in the fit 1106
Number of rejected observations 9
Number of DES observations 0
Number of MPC observations 735
Number of unpublished observations 97
RMS of observations 0.108 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 0.012 0.010
2023-07 0.021 0.012
2024-01 0.015 0.012
2024-07 0.026 0.015
2025-01 0.020 0.015
2025-07 0.032 0.017
2026-01 0.025 0.018
2026-07 0.039 0.020
2027-01 0.032 0.021

Ephemeris comparison

residual plot

Difference between NIMAv13 and JPL22 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