(120347) Salacia
Object
| Object |
(120347) Salacia |
| Diameter(1) |
866 km |
| Dynamic class(1) |
cubewano-hot |
| Absolute magnitude |
4.24 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
42.174971 ± 0.000303 au |
| Eccentricity |
0.102342255 ± 0.000003107 |
| Inclination |
23.927157054 ± 0.000002459 ° |
| Longitude of ascending node |
280.253037 ± 0.000039 ° |
| Argument of perihelia |
310.112407 ± 0.003128 ° |
| Mean anomaly |
132.098261 ± 0.003525 ° |
| Orbital period |
273.90 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv12 |
| Observation file (documentation) |
omc_ast_NIMAv12.txt |
| bsp file |
120347_Salacia_nima_v12.bsp |
| Date of first observation |
1982-07-25 |
| Date of last observation |
2025-07-12 |
| Number of observations used in the fit |
741 |
| Number of rejected observations |
2 |
| Number of DES observations |
0 |
| Number of MPC observations |
456 |
| Number of unpublished observations |
42 |
| RMS of observations |
0.115 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv12 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.010 |
0.011 |
| 2024-07 |
0.013 |
0.007 |
| 2025-01 |
0.010 |
0.011 |
| 2025-07 |
0.016 |
0.009 |
| 2026-01 |
0.011 |
0.012 |
| 2026-07 |
0.019 |
0.010 |
| 2027-01 |
0.013 |
0.013 |
| 2027-07 |
0.023 |
0.012 |
| 2028-01 |
0.016 |
0.013 |
Ephemeris comparison
Difference between NIMAv12 and JPL37 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.
Previous NIMA versions