(78799) 2002XW93
This object has a more recent orbit available here
Object
| Object | (78799) 2002XW93 |
| Diameter(1) | 565 km |
| Dynamic class(1) | Centaur |
| Absolute magnitude | 4.94 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
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 |
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| Number of unpublished observations | 12 |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.