(230965) 2004XA192


Object

Object (230965) 2004XA192
Diameter(1) 339 km
Dynamic class(1) otherTNO
Absolute magnitude 4.28
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2460800.5
Semi major axis 47.480862 ± 0.001794 au
Eccentricity 0.253006224 ± 0.000023557
Inclination 38.093561342 ± 0.000037048 °
Longitude of ascending node 328.669497 ± 0.000074 °
Argument of perihelia 132.067255 ± 0.001644 °
Mean anomaly 6.990076 ± 0.000833 °
Orbital period 327.18 yr

Ephemeris & Observations

Ephemeris version NIMAv8
Observation file (documentation) omc_ast_NIMAv8.txt
bsp file 230965_2004XA192_nima_v8.bsp
Date of first observation 1989-08-29
Date of last observation 2025-04-15
Number of observations used in the fit 645
Number of rejected observations 7
Number of DES observations 0
Number of MPC observations 625
Number of unpublished observations 27
RMS of observations 0.192 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)
2024-01 0.071 0.068
2024-07 0.067 0.081
2025-01 0.086 0.084
2025-07 0.079 0.098
2026-01 0.102 0.103
2026-07 0.092 0.117
2027-01 0.120 0.125
2027-07 0.107 0.139
2028-01 0.139 0.150

Ephemeris comparison

residual plot

Difference between NIMAv8 and JPL27 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