(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) | 2459800.5 |
| Semi major axis | 5.060521 ± 0.000000 au |
| Eccentricity | 0.042181091 ± 0.000000057 |
| Inclination | 15.306613427 ± 0.000005108 ° |
| Longitude of ascending node | 100.761029 ± 0.000028 ° |
| Argument of perihelia | 160.430021 ± 0.000095 ° |
| Mean anomaly | 41.194409 ± 0.000090 ° |
| Orbital period | 11.38 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 16560_Daitor_nima_v4.bsp |
| Date of first observation | 1955-10-23 |
| Date of last observation | 2022-07-12 |
| Number of observations used in the fit | 2156 |
| Number of rejected observations | 5 |
| Number of DES observations | 115 |
| Number of MPC observations | 2046 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.363 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.035 | 0.023 |
| 2022-07 | 0.055 | 0.034 |
| 2023-01 | 0.039 | 0.023 |
| 2023-07 | 0.050 | 0.030 |
| 2024-01 | 0.041 | 0.022 |
| 2024-07 | 0.044 | 0.026 |
| 2025-01 | 0.045 | 0.026 |
| 2025-07 | 0.042 | 0.025 |
| 2026-01 | 0.052 | 0.032 |
Ephemeris comparison
Difference between NIMAv4 and JPL34 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.