(78799) 2002XW93
Object
| Object |
(78799) 2002XW93 |
| Diameter(1) |
565 km |
| Dynamic class(1) |
otherTNO |
| Absolute magnitude |
4.99 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2460200.5 |
| Semi major axis |
37.605017 ± 0.002538 au |
| Eccentricity |
0.247216942 ± 0.000041893 |
| Inclination |
14.323489424 ± 0.000111321 ° |
| Longitude of ascending node |
46.663477 ± 0.000364 ° |
| Argument of perihelia |
248.749944 ± 0.008489 ° |
| Mean anomaly |
150.536659 ± 0.011100 ° |
| Orbital period |
230.61 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv4 |
| Observation file (documentation) |
omc_ast_NIMAv4.txt |
| bsp file |
78799_2002XW93_nima_v4.bsp |
| Date of first observation |
1989-12-17 |
| Date of last observation |
2023-11-27 |
| Number of observations used in the fit |
96 |
| Number of rejected observations |
1 |
| Number of DES observations |
0 |
| Number of MPC observations |
85 |
| Number of unpublished observations |
12 |
| RMS of observations |
0.242 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date |
σα (arcsec) |
σδ (arcsec) |
| 2023-01 |
0.141 |
0.112 |
| 2023-07 |
0.137 |
0.115 |
| 2024-01 |
0.154 |
0.120 |
| 2024-07 |
0.153 |
0.122 |
| 2025-01 |
0.170 |
0.128 |
| 2025-07 |
0.170 |
0.129 |
| 2026-01 |
0.188 |
0.137 |
| 2026-07 |
0.191 |
0.136 |
| 2027-01 |
0.210 |
0.145 |
Ephemeris comparison
Difference between NIMAv4 and JPL6 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