(612911) 2004XR190
This object has a more recent orbit available here
Object
| Object | (612911) 2004XR190 |
| Diameter(1) | 485 km |
| Dynamic class(1) | otherTNO |
| Absolute magnitude | 4.40 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2460600.5 |
| Semi major axis | 57.791163 ± 0.004292 au |
| Eccentricity | 0.106709524 ± 0.000044657 |
| Inclination | 46.503294938 ± 0.000154549 ° |
| Longitude of ascending node | 252.311858 ± 0.000038 ° |
| Argument of perihelia | 280.649607 ± 0.029058 ° |
| Mean anomaly | 286.390298 ± 0.029313 ° |
| Orbital period | 439.34 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv5 |
| Observation file |
omc_ast_NIMAv5.txt |
| bsp file | 612911_2004XR190_nima_v5.bsp |
| Date of first observation | 2002-12-06 |
| Date of last observation | 2023-10-11 |
| Number of observations used in the fit | 202 |
| Number of rejected observations | 1 |
| Number of DES observations | 0 |
| Number of MPC observations | 121 |
| Number of unpublished observations | 82 |
| RMS of observations | 0.139 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2024-01 | 0.076 | 0.059 |
| 2024-07 | 0.118 | 0.067 |
| 2025-01 | 0.101 | 0.083 |
| 2025-07 | 0.143 | 0.089 |
| 2026-01 | 0.130 | 0.111 |
| 2026-07 | 0.171 | 0.115 |
| 2027-01 | 0.161 | 0.141 |
| 2027-07 | 0.203 | 0.144 |
| 2028-01 | 0.195 | 0.175 |
Ephemeris comparison
Difference between NIMAv5 and JPL13 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.