(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) | 2458600.5 |
| Semi major axis | 5.161488 ± 0.000000 au |
| Eccentricity | 0.052136704 ± 0.000000068 |
| Inclination | 8.849451230 ± 0.000001709 ° |
| Longitude of ascending node | 156.837281 ± 0.000030 ° |
| Argument of perihelia | 197.958896 ± 0.000077 ° |
| Mean anomaly | 188.388319 ± 0.000064 ° |
| Orbital period | 11.73 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 24448_2000QE42_nima_v2.bsp |
| Date of first observation | 1988-10-09 |
| Date of last observation | 2021-06-15 |
| Number of observations used in the fit | 1333 |
| Number of rejected observations | 8 |
| Number of DES observations | 0 |
| Number of MPC observations | 1331 |
| Number of unpublished observations | 10 |
| RMS of observations | 0.430 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.004 | 0.005 |
| 2021-07 | 0.007 | 0.007 |
| 2022-01 | 0.009 | 0.007 |
| 2022-07 | 0.020 | 0.015 |
| 2023-01 | 0.019 | 0.012 |
| 2023-07 | 0.040 | 0.020 |
| 2024-01 | 0.033 | 0.015 |
| 2024-07 | 0.054 | 0.022 |
| 2025-01 | 0.049 | 0.017 |
Ephemeris comparison
Difference between NIMAv2 and JPL31 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.