(469505) 2003FE128
This object has a more recent orbit available here
Object
| Object | (469505) 2003FE128 |
| Diameter(1) | 243 km |
| Dynamic class(1) | res1:2 |
| Absolute magnitude | 6.30 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 48.426235 ± 0.009085 au |
| Eccentricity | 0.259162714 ± 0.000116221 |
| Inclination | 3.383029432 ± 0.000855366 ° |
| Longitude of ascending node | 169.182444 ± 0.008045 ° |
| Argument of perihelia | 54.623175 ± 0.009635 ° |
| Mean anomaly | 9.504503 ± 0.004359 ° |
| Orbital period | 337.00 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv2 |
| Observation file |
omc_ast_NIMAv2.txt |
| bsp file | 469505_2003FE128_nima_v2.bsp |
| Date of first observation | 2003-03-31 |
| Date of last observation | 2020-06-23 |
| Number of observations used in the fit | 84 |
| Number of rejected observations | 0 |
| Number of DES observations | 0 |
| Number of MPC observations | 84 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.208 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 | 0.266 | 0.143 |
| 2021-07 | 0.200 | 0.144 |
| 2022-01 | 0.319 | 0.155 |
| 2022-07 | 0.244 | 0.156 |
| 2023-01 | 0.382 | 0.167 |
| 2023-07 | 0.301 | 0.168 |
| 2024-01 | 0.456 | 0.179 |
| 2024-07 | 0.372 | 0.181 |
| 2025-01 | 0.541 | 0.192 |
Ephemeris comparison
Difference between NIMAv2 and JPL9 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.