(145451) 2005RM43
This object has a more recent orbit available here
Object
| Object | (145451) 2005RM43 |
| Diameter(1) | 645 km |
| Dynamic class(1) | SDO |
| Absolute magnitude | 4.40 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 89.611936 ± 0.007117 au |
| Eccentricity | 0.608546695 ± 0.000028912 |
| Inclination | 28.819165226 ± 0.000099103 ° |
| Longitude of ascending node | 84.607370 ± 0.000304 ° |
| Argument of perihelia | 318.097990 ± 0.000770 ° |
| Mean anomaly | 6.191430 ± 0.000817 ° |
| Orbital period | 848.31 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv7 |
| Observation file |
omc_ast_NIMAv7.txt |
| bsp file | 145451_2005RM43_nima_v7.bsp |
| Date of first observation | 1976-11-17 |
| Date of last observation | 2018-12-24 |
| Number of observations used in the fit | 302 |
| Number of rejected observations | 2 |
| Number of DES observations | 0 |
| Number of MPC observations | 261 |
| Number of unpublished observations | 43 |
| RMS of observations | 0.214 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv7 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.014 | 0.008 |
| 2018-07 | 0.023 | 0.009 |
| 2019-01 | 0.007 | 0.005 |
| 2019-07 | 0.030 | 0.012 |
| 2020-01 | 0.010 | 0.010 |
| 2020-07 | 0.040 | 0.018 |
| 2021-01 | 0.022 | 0.018 |
| 2021-07 | 0.053 | 0.026 |
| 2022-01 | 0.037 | 0.027 |
Ephemeris comparison
Difference between NIMAv7 and JPL14 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.