(53311) Deucalion
Object
| Object |
(53311) Deucalion |
| Diameter(1) |
212 km |
| Dynamic class(1) |
cubewano |
| Absolute magnitude |
6.70 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460200.5 |
| Semi major axis |
43.854593 ± 0.003231 au |
| Eccentricity |
0.061029941 ± 0.000021233 |
| Inclination |
0.369002734 ± 0.000127493 ° |
| Longitude of ascending node |
51.335577 ± 0.003214 ° |
| Argument of perihelia |
246.369684 ± 0.050220 ° |
| Mean anomaly |
303.834550 ± 0.048536 ° |
| Orbital period |
290.42 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv1 |
| Observation file (documentation) |
omc_ast_NIMAv1.txt |
| bsp file |
53311_Deucalion_nima_v1.bsp |
| Date of first observation |
1999-04-12 |
| Date of last observation |
2020-06-24 |
| Number of observations used in the fit |
128 |
| Number of rejected observations |
0 |
| Number of DES observations |
0 |
| Number of MPC observations |
128 |
| Number of unpublished observations |
0 |
| RMS of observations |
0.234 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) |
| 2023-01 |
0.211 |
0.105 |
| 2023-07 |
0.210 |
0.113 |
| 2024-01 |
0.252 |
0.117 |
| 2024-07 |
0.246 |
0.124 |
| 2025-01 |
0.296 |
0.130 |
| 2025-07 |
0.287 |
0.137 |
| 2026-01 |
0.345 |
0.142 |
| 2026-07 |
0.333 |
0.149 |
| 2027-01 |
0.398 |
0.155 |
Ephemeris comparison
Difference between NIMAv1 and JPL7 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.