(58931) Palmys
This object has a more recent orbit available here
Object
| Object | (58931) Palmys |
| Diameter(1) | 28 km |
| Dynamic class(1) | trojan |
| Absolute magnitude | 11.60 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 5.263093 ± 0.000000 au |
| Eccentricity | 0.100107941 ± 0.000000102 |
| Inclination | 16.409412080 ± 0.000005259 ° |
| Longitude of ascending node | 119.562437 ± 0.000026 ° |
| Argument of perihelia | 133.796598 ± 0.000065 ° |
| Mean anomaly | 293.777354 ± 0.000053 ° |
| Orbital period | 12.07 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 58931_Palmys_nima_v2.bsp |
| Date of first observation | 1993-01-21 |
| Date of last observation | 2021-04-14 |
| Number of observations used in the fit | 1096 |
| Number of rejected observations | 8 |
| Number of DES observations | 18 |
| Number of MPC observations | 1083 |
| Number of unpublished observations | 3 |
| RMS of observations | 0.463 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) |
| 2021-01 | 0.009 | 0.008 |
| 2021-07 | 0.010 | 0.012 |
| 2022-01 | 0.013 | 0.014 |
| 2022-07 | 0.032 | 0.030 |
| 2023-01 | 0.027 | 0.024 |
| 2023-07 | 0.048 | 0.036 |
| 2024-01 | 0.038 | 0.028 |
| 2024-07 | 0.050 | 0.033 |
| 2025-01 | 0.047 | 0.027 |
Ephemeris comparison
Difference between NIMAv2 and JPL19 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.