(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 | 43.145631 ± 0.000853 au |
| Eccentricity | 0.125341863 ± 0.000010678 |
| Inclination | 25.841828854 ± 0.000146979 ° |
| Longitude of ascending node | 324.479657 ± 0.000387 ° |
| Argument of perihelia | 339.051170 ± 0.004802 ° |
| Mean anomaly | 77.627054 ± 0.006250 ° |
| Orbital period | 283.41 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 55636_2002TX300_nima_v4.bsp |
| Date of first observation | 1954-08-27 |
| Date of last observation | 2018-09-13 |
| Number of observations used in the fit | 415 |
| Number of rejected observations | 5 |
| Number of DES observations | 0 |
| Number of MPC observations | 377 |
| Number of unpublished observations | 43 |
| RMS of observations | 0.249 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) |
| 2018-01 | 0.057 | 0.050 |
| 2018-07 | 0.056 | 0.048 |
| 2019-01 | 0.057 | 0.052 |
| 2019-07 | 0.065 | 0.052 |
| 2020-01 | 0.057 | 0.055 |
| 2020-07 | 0.077 | 0.058 |
| 2021-01 | 0.060 | 0.059 |
| 2021-07 | 0.090 | 0.064 |
| 2022-01 | 0.066 | 0.065 |
Ephemeris comparison
Difference between NIMAv4 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.