(7352) 1994CO
This object has a more recent orbit available here
Object
| Object | (7352) 1994CO |
| Diameter(1) | 62 km |
| Dynamic class(1) | trojan |
| Absolute magnitude | 9.90 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458200.5 |
| Semi major axis | 5.132398 ± 0.000001 au |
| Eccentricity | 0.037320953 ± 0.000000060 |
| Inclination | 8.181577786 ± 0.000007315 ° |
| Longitude of ascending node | 130.323196 ± 0.000045 ° |
| Argument of perihelia | 125.509349 ± 0.000212 ° |
| Mean anomaly | 257.932117 ± 0.000190 ° |
| Orbital period | 11.63 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 7352_1994CO_nima_v1.bsp |
| Date of first observation | 1988-08-16 |
| Date of last observation | 2018-11-12 |
| Number of observations used in the fit | 1798 |
| Number of rejected observations | 4 |
| Number of DES observations | 9 |
| Number of MPC observations | 1793 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.472 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2018-01 | 0.035 | 0.026 |
| 2018-07 | 0.029 | 0.020 |
| 2019-01 | 0.043 | 0.026 |
| 2019-07 | 0.042 | 0.024 |
| 2020-01 | 0.052 | 0.027 |
| 2020-07 | 0.063 | 0.032 |
| 2021-01 | 0.059 | 0.025 |
| 2021-07 | 0.085 | 0.035 |
| 2022-01 | 0.061 | 0.022 |
Ephemeris comparison
Difference between NIMAv1 and JPL33 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.