(24448) 2000QE42
This object has a more recent orbit available here
Object
Object | (24448) 2000QE42 |
Diameter(1) | 31 km |
Dynamic class(1) | trojan |
Absolute magnitude | 11.40 |
G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
Epoch (Julian date) | 2458200.5 |
Semi major axis | 5.163754 ± 0.000001 au |
Eccentricity | 0.051741538 ± 0.000000155 |
Inclination | 8.847541488 ± 0.000008368 ° |
Longitude of ascending node | 156.834856 ± 0.000050 ° |
Argument of perihelia | 198.445300 ± 0.000083 ° |
Mean anomaly | 154.249325 ± 0.000061 ° |
Orbital period | 11.73 yr |
Ephemeris & Observations
Ephemeris version | NIMAv1 |
Observation file |
omc_ast_NIMAv1.txt |
bsp file | 24448_2000QE42_nima_v1.bsp |
Date of first observation | 1988-10-09 |
Date of last observation | 2018-11-12 |
Number of observations used in the fit | 1107 |
Number of rejected observations | 3 |
Number of DES observations | 55 |
Number of MPC observations | 1055 |
Number of unpublished observations | 0 |
RMS of observations | 0.450 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date | σα (arcsec) | σδ (arcsec) |
2018-01 | 0.041 | 0.032 |
2018-07 | 0.034 | 0.023 |
2019-01 | 0.046 | 0.025 |
2019-07 | 0.045 | 0.022 |
2020-01 | 0.056 | 0.024 |
2020-07 | 0.064 | 0.029 |
2021-01 | 0.064 | 0.027 |
2021-07 | 0.087 | 0.038 |
2022-01 | 0.070 | 0.028 |
Ephemeris comparison
Difference between NIMAv1 and JPL22 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.