(119951) 2002KX14


Object

Object (119951) 2002KX14
Diameter(1) 455 km
Dynamic class(1) cubewano
Absolute magnitude 4.70
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2458600.5
Semi major axis 39.086756 ± 0.000252 au
Eccentricity 0.044230642 ± 0.000003281
Inclination 0.397771230 ± 0.000070300 °
Longitude of ascending node 287.158785 ± 0.007630 °
Argument of perihelia 63.563555 ± 0.012155 °
Mean anomaly 274.157922 ± 0.006436 °
Orbital period 244.37 yr

Ephemeris & Observations

Ephemeris version NIMAv8
Observation file (documentation) omc_ast_NIMAv8.txt
bsp file 119951_2002KX14_nima_v8.bsp
Date of first observation 1984-05-31
Date of last observation 2020-05-26
Number of observations used in the fit 238
Number of rejected observations 9
Number of DES observations 0
Number of MPC observations 190
Number of unpublished observations 57
RMS of observations 0.115 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv8 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2021-01 0.011 0.008
2021-07 0.012 0.009
2022-01 0.016 0.009
2022-07 0.017 0.011
2023-01 0.021 0.011
2023-07 0.024 0.012
2024-01 0.028 0.012
2024-07 0.031 0.013
2025-01 0.036 0.014

Ephemeris comparison

residual plot

Difference between NIMAv8 and JPL17 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