(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) | 2458600.5 |
| Semi major axis | 5.055444 ± 0.000001 au |
| Eccentricity | 0.041101283 ± 0.000000082 |
| Inclination | 15.311440241 ± 0.000005260 ° |
| Longitude of ascending node | 100.761463 ± 0.000029 ° |
| Argument of perihelia | 158.172707 ± 0.000190 ° |
| Mean anomaly | 299.255440 ± 0.000166 ° |
| Orbital period | 11.37 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 16560_Daitor_nima_v2.bsp |
| Date of first observation | 1955-10-23 |
| Date of last observation | 2019-07-26 |
| Number of observations used in the fit | 1601 |
| Number of rejected observations | 2 |
| Number of DES observations | 115 |
| Number of MPC observations | 1488 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.409 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2019-01 | 0.027 | 0.020 |
| 2019-07 | 0.029 | 0.020 |
| 2020-01 | 0.036 | 0.023 |
| 2020-07 | 0.049 | 0.032 |
| 2021-01 | 0.047 | 0.026 |
| 2021-07 | 0.075 | 0.041 |
| 2022-01 | 0.054 | 0.026 |
| 2022-07 | 0.082 | 0.036 |
| 2023-01 | 0.055 | 0.023 |
Ephemeris comparison
Difference between NIMAv2 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.