(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 | 43.145151 ± 0.000573 au |
| Eccentricity | 0.125335313 ± 0.000006721 |
| Inclination | 25.841834286 ± 0.000094103 ° |
| Longitude of ascending node | 324.479731 ± 0.000252 ° |
| Argument of perihelia | 339.048320 ± 0.003426 ° |
| Mean anomaly | 77.630548 ± 0.004314 ° |
| Orbital period | 283.40 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv7 |
| Observation file |
omc_ast_NIMAv7.txt |
| bsp file | 55636_2002TX300_nima_v7.bsp |
| Date of first observation | 1954-08-27 |
| Date of last observation | 2020-11-09 |
| Number of observations used in the fit | 874 |
| Number of rejected observations | 6 |
| Number of DES observations | 0 |
| Number of MPC observations | 822 |
| Number of unpublished observations | 58 |
| RMS of observations | 0.207 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.030 | 0.029 |
| 2021-07 | 0.045 | 0.031 |
| 2022-01 | 0.032 | 0.032 |
| 2022-07 | 0.054 | 0.034 |
| 2023-01 | 0.036 | 0.035 |
| 2023-07 | 0.063 | 0.038 |
| 2024-01 | 0.042 | 0.039 |
| 2024-07 | 0.075 | 0.042 |
| 2025-01 | 0.050 | 0.043 |
Ephemeris comparison
Difference between NIMAv7 and JPL38 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.