(78799) 2002XW93
Object
| Object |
(78799) 2002XW93 |
| Diameter(1) |
565 km |
| Dynamic class(1) |
Centaur |
| Absolute magnitude |
4.92 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460800.5 |
| Semi major axis |
37.684164 ± 0.002510 au |
| Eccentricity |
0.243916490 ± 0.000041204 |
| Inclination |
14.330715730 ± 0.000107446 ° |
| Longitude of ascending node |
46.700082 ± 0.000353 ° |
| Argument of perihelia |
248.549254 ± 0.008498 ° |
| Mean anomaly |
153.521399 ± 0.011355 ° |
| Orbital period |
231.34 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv6 |
| Observation file (documentation) |
omc_ast_NIMAv6.txt |
| bsp file |
78799_2002XW93_nima_v6.bsp |
| Date of first observation |
1989-12-17 |
| Date of last observation |
2025-02-25 |
| Number of observations used in the fit |
117 |
| Number of rejected observations |
1 |
| Number of DES observations |
0 |
| Number of MPC observations |
106 |
| Number of unpublished observations |
12 |
| RMS of observations |
0.223 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) |
| 2024-01 |
0.143 |
0.115 |
| 2024-07 |
0.143 |
0.117 |
| 2025-01 |
0.158 |
0.123 |
| 2025-07 |
0.160 |
0.124 |
| 2026-01 |
0.176 |
0.131 |
| 2026-07 |
0.179 |
0.131 |
| 2027-01 |
0.198 |
0.139 |
| 2027-07 |
0.202 |
0.138 |
| 2028-01 |
0.223 |
0.147 |
Ephemeris comparison
Difference between NIMAv6 and JPL9 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