(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 | 11.51 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 5.153561 ± 0.000000 au |
| Eccentricity | 0.053754316 ± 0.000000060 |
| Inclination | 8.851600249 ± 0.000001683 ° |
| Longitude of ascending node | 156.855602 ± 0.000030 ° |
| Argument of perihelia | 198.638622 ± 0.000058 ° |
| Mean anomaly | 288.797337 ± 0.000056 ° |
| Orbital period | 11.70 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 24448_2000QE42_nima_v4.bsp |
| Date of first observation | 1988-10-09 |
| Date of last observation | 2023-06-27 |
| Number of observations used in the fit | 1638 |
| Number of rejected observations | 9 |
| Number of DES observations | 0 |
| Number of MPC observations | 1637 |
| Number of unpublished observations | 10 |
| RMS of observations | 0.415 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) |
| 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 | 0.048 | 0.017 |
| 2025-07 | 0.059 | 0.019 |
| 2026-01 | 0.065 | 0.019 |
| 2026-07 | 0.060 | 0.013 |
| 2027-01 | 0.079 | 0.017 |
Ephemeris comparison
Difference between NIMAv4 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.