(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| Number of unpublished observations | 0 |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.