(55636) 2002TX300
This object has a more recent orbit available here
Object
| Object | (55636) 2002TX300 |
| Diameter(1) | 286 km |
| Dynamic class(1) | Haumea |
| Absolute magnitude | 3.40 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 43.145052 ± 0.000712 au |
| Eccentricity | 0.125334535 ± 0.000008539 |
| Inclination | 25.841832759 ± 0.000119812 ° |
| Longitude of ascending node | 324.479725 ± 0.000322 ° |
| Argument of perihelia | 339.047521 ± 0.004152 ° |
| Mean anomaly | 77.631423 ± 0.005295 ° |
| Orbital period | 283.40 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 55636_2002TX300_nima_v5.bsp |
| Date of first observation | 1954-08-27 |
| Date of last observation | 2018-12-21 |
| Number of observations used in the fit | 430 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 391 |
| Number of unpublished observations | 44 |
| RMS of observations | 0.249 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) |
| 2019-01 | 0.048 | 0.046 |
| 2019-07 | 0.062 | 0.048 |
| 2020-01 | 0.052 | 0.051 |
| 2020-07 | 0.071 | 0.054 |
| 2021-01 | 0.057 | 0.056 |
| 2021-07 | 0.082 | 0.060 |
| 2022-01 | 0.063 | 0.061 |
| 2022-07 | 0.095 | 0.066 |
| 2023-01 | 0.072 | 0.068 |
Ephemeris comparison
Difference between NIMAv5 and JPL28 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.