(16560) Daitor
This object has a more recent orbit available here
Object
Object | (16560) Daitor |
Diameter(1) | 43 km |
Dynamic class(1) | trojan |
Absolute magnitude | 10.78 |
G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
Epoch (Julian date) | 2457308.142149056 |
Semi major axis | 5.058917 ± 0.000001 au |
Eccentricity | 0.039632810 ± 0.000000082 |
Inclination | 15.307230381 ± 0.000005084 ° |
Longitude of ascending node | 100.754720 ± 0.000028 ° |
Argument of perihelia | 158.179291 ± 0.000114 ° |
Mean anomaly | 187.083691 ± 0.000122 ° |
Orbital period | 11.38 yr |
Ephemeris & Observations
Ephemeris version | NIMAv3 |
Observation file |
omc_ast_NIMAv3.txt |
bsp file | 16560_Daitor_nima_v3.bsp |
Date of first observation | 1955-10-23 |
Date of last observation | 2020-09-14 |
Number of observations used in the fit | 1984 |
Number of rejected observations | 5 |
Number of DES observations | 115 |
Number of MPC observations | 1874 |
Number of unpublished observations | 0 |
RMS of observations | 0.373 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date | σα (arcsec) | σδ (arcsec) |
2021-01 | 0.035 | 0.023 |
2021-07 | 0.056 | 0.036 |
2022-01 | 0.041 | 0.025 |
2022-07 | 0.065 | 0.036 |
2023-01 | 0.045 | 0.024 |
2023-07 | 0.056 | 0.032 |
2024-01 | 0.046 | 0.023 |
2024-07 | 0.047 | 0.027 |
2025-01 | 0.048 | 0.026 |
Ephemeris comparison
Difference between NIMAv3 and JPL31 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.