(78799) 2002XW93
Object
| Object |
(78799) 2002XW93 |
| Diameter(1) |
565 km |
| Dynamic class(1) |
Centaur |
| Absolute magnitude |
4.94 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460600.5 |
| Semi major axis |
37.670651 ± 0.002530 au |
| Eccentricity |
0.244680577 ± 0.000041606 |
| Inclination |
14.325709005 ± 0.000109412 ° |
| Longitude of ascending node |
46.674584 ± 0.000359 ° |
| Argument of perihelia |
248.694416 ± 0.008539 ° |
| Mean anomaly |
152.444554 ± 0.011315 ° |
| Orbital period |
231.21 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv5 |
| Observation file (documentation) |
omc_ast_NIMAv5.txt |
| bsp file |
78799_2002XW93_nima_v5.bsp |
| Date of first observation |
1989-12-17 |
| Date of last observation |
2024-01-27 |
| Number of observations used in the fit |
106 |
| Number of rejected observations |
1 |
| Number of DES observations |
0 |
| Number of MPC observations |
95 |
| Number of unpublished observations |
12 |
| RMS of observations |
0.232 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2024-01 |
0.148 |
0.118 |
| 2024-07 |
0.148 |
0.120 |
| 2025-01 |
0.164 |
0.126 |
| 2025-07 |
0.165 |
0.127 |
| 2026-01 |
0.182 |
0.134 |
| 2026-07 |
0.185 |
0.134 |
| 2027-01 |
0.204 |
0.142 |
| 2027-07 |
0.208 |
0.141 |
| 2028-01 |
0.229 |
0.150 |
Ephemeris comparison
Difference between NIMAv5 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.
Previous NIMA versions