(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 43.144997 ± 0.000694 au
Eccentricity 0.125333788 ± 0.000008241
Inclination 25.841831380 ± 0.000116058 °
Longitude of ascending node 324.479721 ± 0.000312 °
Argument of perihelia 339.047220 ± 0.004085 °
Mean anomaly 77.631812 ± 0.005192 °
Orbital period 283.40 yr

Ephemeris & Observations

Ephemeris version NIMAv6
Observation file (documentation) omc_ast_NIMAv6.txt
bsp file 55636_2002TX300_nima_v6.bsp
Date of first observation 1954-08-27
Date of last observation 2019-11-04
Number of observations used in the fit 462
Number of rejected observations 5
Number of DES observations 0
Number of MPC observations 417
Number of unpublished observations 50
RMS of observations 0.257 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv6 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2019-01 0.043 0.041
2019-07 0.053 0.042
2020-01 0.046 0.044
2020-07 0.061 0.046
2021-01 0.049 0.048
2021-07 0.071 0.051
2022-01 0.054 0.053
2022-07 0.082 0.057
2023-01 0.061 0.058

Ephemeris comparison

residual plot

Difference between NIMAv6 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.