(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 | 10.70 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458200.5 |
| Semi major axis | 5.055952 ± 0.000001 au |
| Eccentricity | 0.040650522 ± 0.000000081 |
| Inclination | 15.311234917 ± 0.000006842 ° |
| Longitude of ascending node | 100.759124 ± 0.000029 ° |
| Argument of perihelia | 157.893332 ± 0.000209 ° |
| Mean anomaly | 264.801021 ± 0.000197 ° |
| Orbital period | 11.37 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 16560_Daitor_nima_v1.bsp |
| Date of first observation | 1955-10-23 |
| Date of last observation | 2018-11-20 |
| Number of observations used in the fit | 1296 |
| Number of rejected observations | 3 |
| Number of DES observations | 115 |
| Number of MPC observations | 1184 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.436 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.036 | 0.028 |
| 2018-07 | 0.031 | 0.021 |
| 2019-01 | 0.046 | 0.027 |
| 2019-07 | 0.049 | 0.027 |
| 2020-01 | 0.059 | 0.031 |
| 2020-07 | 0.077 | 0.043 |
| 2021-01 | 0.069 | 0.032 |
| 2021-07 | 0.106 | 0.046 |
| 2022-01 | 0.073 | 0.026 |
Ephemeris comparison
Difference between NIMAv1 and JPL20 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.