(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 | 11.67 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 5.257410 ± 0.000000 au |
| Eccentricity | 0.099621720 ± 0.000000019 |
| Inclination | 16.410880960 ± 0.000001658 ° |
| Longitude of ascending node | 119.566281 ± 0.000004 ° |
| Argument of perihelia | 134.694108 ± 0.000013 ° |
| Mean anomaly | 31.064021 ± 0.000010 ° |
| Orbital period | 12.05 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv6 |
| Observation file |
omc_ast_NIMAv6.txt |
| bsp file | 58931_Palmys_nima_v6.bsp |
| Date of first observation | 1993-01-21 |
| Date of last observation | 2023-06-20 |
| Number of observations used in the fit | 1856 |
| Number of rejected observations | 14 |
| Number of DES observations | 18 |
| Number of MPC observations | 1479 |
| Number of unpublished observations | 88 |
| RMS of observations | 0.118 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.006 | 0.004 |
| 2023-07 | 0.013 | 0.006 |
| 2024-01 | 0.011 | 0.006 |
| 2024-07 | 0.016 | 0.008 |
| 2025-01 | 0.015 | 0.007 |
| 2025-07 | 0.018 | 0.009 |
| 2026-01 | 0.020 | 0.009 |
| 2026-07 | 0.020 | 0.009 |
| 2027-01 | 0.025 | 0.011 |
Ephemeris comparison
Difference between NIMAv6 and JPL35 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.