(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 | 91.454095 ± 0.007987 au |
| Eccentricity | 0.602202470 ± 0.000031762 |
| Inclination | 16.287728912 ± 0.000012411 ° |
| Longitude of ascending node | 230.320785 ± 0.000117 ° |
| Argument of perihelia | 75.716383 ± 0.000925 ° |
| Mean anomaly | 6.581546 ± 0.001023 ° |
| Orbital period | 874.61 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv3 |
| Observation file |
omc_ast_NIMAv3.txt |
| bsp file | 307982_2004PG115_nima_v3.bsp |
| Date of first observation | 2002-06-10 |
| Date of last observation | 2021-10-20 |
| Number of observations used in the fit | 433 |
| Number of rejected observations | 8 |
| Number of DES observations | 0 |
| Number of MPC observations | 431 |
| Number of unpublished observations | 10 |
| RMS of observations | 0.143 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2021-01 | 0.053 | 0.034 |
| 2021-07 | 0.014 | 0.013 |
| 2022-01 | 0.054 | 0.034 |
| 2022-07 | 0.019 | 0.015 |
| 2023-01 | 0.055 | 0.035 |
| 2023-07 | 0.028 | 0.019 |
| 2024-01 | 0.057 | 0.036 |
| 2024-07 | 0.039 | 0.022 |
| 2025-01 | 0.060 | 0.037 |
Ephemeris comparison
Difference between NIMAv3 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.