(307982) 2004PG115
This object has a more recent orbit available here
Object
| Object | (307982) 2004PG115 |
| Diameter(1) | 486 km |
| Dynamic class(1) | SDO |
| Absolute magnitude | 4.80 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2458600.5 |
| Semi major axis | 91.487446 ± 0.017247 au |
| Eccentricity | 0.602333840 ± 0.000068797 |
| Inclination | 16.287744822 ± 0.000213945 ° |
| Longitude of ascending node | 230.320678 ± 0.000913 ° |
| Argument of perihelia | 75.721324 ± 0.001120 ° |
| Mean anomaly | 6.576985 ± 0.002103 ° |
| Orbital period | 875.09 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv1 |
| Observation file |
omc_ast_NIMAv1.txt |
| bsp file | 307982_2004PG115_nima_v1.bsp |
| Date of first observation | 2002-06-10 |
| Date of last observation | 2018-10-31 |
| Number of observations used in the fit | 170 |
| Number of rejected observations | 0 |
| Number of DES observations | 1 |
| Number of MPC observations | 169 |
| Number of unpublished observations | 0 |
| RMS of observations | 0.429 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 | 0.133 | 0.098 |
| 2018-07 | 0.181 | 0.102 |
| 2019-01 | 0.166 | 0.107 |
| 2019-07 | 0.221 | 0.115 |
| 2020-01 | 0.203 | 0.118 |
| 2020-07 | 0.267 | 0.129 |
| 2021-01 | 0.244 | 0.128 |
| 2021-07 | 0.317 | 0.144 |
| 2022-01 | 0.289 | 0.140 |
Ephemeris comparison
Difference between NIMAv1 and JPL8 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.