(23463) 1989TX11


Object

Object (23463) 1989TX11
Diameter(1) 30 km
Dynamic class(1) trojan
Absolute magnitude 11.62
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2460800.5
Semi major axis 5.174437 ± 0.000000 au
Eccentricity 0.049022510 ± 0.000000077
Inclination 12.887636729 ± 0.000006463 °
Longitude of ascending node 110.635588 ± 0.000035 °
Argument of perihelia 271.653445 ± 0.000075 °
Mean anomaly 3.376567 ± 0.000068 °
Orbital period 11.77 yr

Ephemeris & Observations

Ephemeris version NIMAv7
Observation file (documentation) omc_ast_NIMAv7.txt
bsp file 23463_1989TX11_nima_v7.bsp
Date of first observation 1989-09-29
Date of last observation 2025-01-03
Number of observations used in the fit 2008
Number of rejected observations 5
Number of DES observations 8
Number of MPC observations 1995
Number of unpublished observations 10
RMS of observations 0.395 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)
2024-01 0.031 0.024
2024-07 0.038 0.027
2025-01 0.037 0.025
2025-07 0.040 0.025
2026-01 0.050 0.032
2026-07 0.044 0.025
2027-01 0.066 0.036
2027-07 0.048 0.024
2028-01 0.071 0.035

Ephemeris comparison

residual plot

Difference between NIMAv7 and JPL45 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