(307261) Mani
This object has a more recent orbit available here
Object
| Object | (307261) Mani |
| Diameter(1) | 934 km |
| Dynamic class(1) | cubewano |
| Absolute magnitude | 3.68 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 41.907476 ± 0.000147 au |
| Eccentricity | 0.144059838 ± 0.000002518 |
| Inclination | 17.706922858 ± 0.000005405 ° |
| Longitude of ascending node | 216.224961 ± 0.000042 ° |
| Argument of perihelia | 212.535642 ± 0.000990 ° |
| Mean anomaly | 228.381709 ± 0.001199 ° |
| Orbital period | 271.30 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv11 |
| Observation file |
omc_ast_NIMAv11.txt |
| bsp file | 307261_Mani_nima_v11.bsp |
| Date of first observation | 1954-04-08 |
| Date of last observation | 2023-07-03 |
| Number of observations used in the fit | 355 |
| Number of rejected observations | 9 |
| Number of DES observations | 0 |
| Number of MPC observations | 134 |
| Number of unpublished observations | 115 |
| RMS of observations | 0.089 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv11 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2023-01 | 0.004 | 0.004 |
| 2023-07 | 0.005 | 0.004 |
| 2024-01 | 0.005 | 0.005 |
| 2024-07 | 0.006 | 0.005 |
| 2025-01 | 0.007 | 0.006 |
| 2025-07 | 0.008 | 0.006 |
| 2026-01 | 0.009 | 0.006 |
| 2026-07 | 0.011 | 0.007 |
| 2027-01 | 0.011 | 0.007 |
Ephemeris comparison
Difference between NIMAv11 and JPL20 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.