(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 | 4.97 |
| G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
| Epoch (Julian date) | 2459800.5 |
| Semi major axis | 92.300290 ± 0.007744 au |
| Eccentricity | 0.604939512 ± 0.000030344 |
| Inclination | 16.266889017 ± 0.000012018 ° |
| Longitude of ascending node | 230.515676 ± 0.000115 ° |
| Argument of perihelia | 76.150677 ± 0.000878 ° |
| Mean anomaly | 7.705444 ± 0.001118 ° |
| Orbital period | 886.77 yr |
Ephemeris & Observations
| Ephemeris version | NIMAv4 |
| Observation file |
omc_ast_NIMAv4.txt |
| bsp file | 307982_2004PG115_nima_v4.bsp |
| Date of first observation | 2002-06-10 |
| Date of last observation | 2021-11-21 |
| Number of observations used in the fit | 442 |
| Number of rejected observations | 8 |
| Number of DES observations | 1 |
| Number of MPC observations | 439 |
| Number of unpublished observations | 10 |
| RMS of observations | 0.143 arcsec |
Residuals
Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
| date | σα (arcsec) | σδ (arcsec) |
| 2022-01 | 0.052 | 0.033 |
| 2022-07 | 0.019 | 0.015 |
| 2023-01 | 0.053 | 0.034 |
| 2023-07 | 0.027 | 0.018 |
| 2024-01 | 0.056 | 0.035 |
| 2024-07 | 0.038 | 0.022 |
| 2025-01 | 0.059 | 0.036 |
| 2025-07 | 0.050 | 0.026 |
| 2026-01 | 0.064 | 0.037 |
Ephemeris comparison
Difference between NIMAv4 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.