(16560) Daitor


Object

Object (16560) Daitor
Diameter(1) 43 km
Dynamic class(1) trojan
Absolute magnitude 10.79
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2460600.5
Semi major axis 5.061874 ± 0.000000 au
Eccentricity 0.041274193 ± 0.000000017
Inclination 15.302156184 ± 0.000000846 °
Longitude of ascending node 100.734489 ± 0.000002 °
Argument of perihelia 161.115300 ± 0.000042 °
Mean anomaly 109.906105 ± 0.000043 °
Orbital period 11.39 yr

Ephemeris & Observations

Ephemeris version NIMAv6
Observation file (documentation) omc_ast_NIMAv6.txt
bsp file 16560_Daitor_nima_v6.bsp
Date of first observation 1955-10-23
Date of last observation 2024-07-12
Number of observations used in the fit 2845
Number of rejected observations 5
Number of DES observations 0
Number of MPC observations 2606
Number of unpublished observations 0
RMS of observations 0.144 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2024-01 0.026 0.008
2024-07 0.028 0.013
2025-01 0.029 0.013
2025-07 0.026 0.012
2026-01 0.033 0.015
2026-07 0.026 0.010
2027-01 0.037 0.013
2027-07 0.027 0.006
2028-01 0.040 0.004

Ephemeris comparison

residual plot

Difference between NIMAv6 and JPL44 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