(83982) Crantor
Object
| Object |
(83982) Crantor |
| Diameter(1) |
59 km |
| Dynamic class(1) |
Centaur |
| Absolute magnitude |
8.92 |
| G slop |
0.15 |
Orbital elements
| Epoch (Julian date) |
2459800.5 |
| Semi major axis |
19.488749 ± 0.000101 au |
| Eccentricity |
0.273862806 ± 0.000002411 |
| Inclination |
12.759402780 ± 0.000018186 ° |
| Longitude of ascending node |
117.395669 ± 0.000040 ° |
| Argument of perihelia |
93.772442 ± 0.000591 ° |
| Mean anomaly |
84.451204 ± 0.000974 ° |
| Orbital period |
86.04 yr |
Ephemeris & Observations
| Ephemeris version |
NIMAv7 |
| Observation file (documentation) |
omc_ast_NIMAv7.txt |
| bsp file |
83982_Crantor_nima_v7.bsp |
| Date of first observation |
2001-03-19 |
| Date of last observation |
2022-09-15 |
| Number of observations used in the fit |
335 |
| Number of rejected observations |
3 |
| Number of DES observations |
0 |
| Number of MPC observations |
320 |
| Number of unpublished observations |
18 |
| RMS of observations |
0.221 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) |
| 2023-01 |
0.098 |
0.047 |
| 2023-07 |
0.143 |
0.057 |
| 2024-01 |
0.123 |
0.051 |
| 2024-07 |
0.175 |
0.064 |
| 2025-01 |
0.151 |
0.057 |
| 2025-07 |
0.211 |
0.073 |
| 2026-01 |
0.184 |
0.064 |
| 2026-07 |
0.249 |
0.084 |
| 2027-01 |
0.219 |
0.073 |
Ephemeris comparison
Difference between NIMAv7 and JPL26 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.
Previous NIMA versions