(470599) 2008OG19
This object has a more recent orbit available here
Object
Object | (470599) 2008OG19 |
Diameter(1) | 509 km |
Dynamic class(1) | SDO |
Absolute magnitude | 4.70 |
G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
Epoch (Julian date) | 2458200.5 |
Semi major axis | 66.979868 ± 0.004577 au |
Eccentricity | 0.424106308 ± 0.000035407 |
Inclination | 13.154843634 ± 0.000310934 ° |
Longitude of ascending node | 164.056449 ± 0.000945 ° |
Argument of perihelia | 140.440716 ± 0.002503 ° |
Mean anomaly | 2.997612 ± 0.001188 ° |
Orbital period | 548.18 yr |
Ephemeris & Observations
Ephemeris version | NIMAv7 |
Observation file |
omc_ast_NIMAv7.txt |
bsp file | 470599_2008OG19_nima_v7.bsp |
Date of first observation | 2008-07-30 |
Date of last observation | 2020-06-23 |
Number of observations used in the fit | 161 |
Number of rejected observations | 11 |
Number of DES observations | 0 |
Number of MPC observations | 103 |
Number of unpublished observations | 69 |
RMS of observations | 0.200 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) |
2020-01 | 0.116 | 0.100 |
2020-07 | 0.139 | 0.110 |
2021-01 | 0.144 | 0.114 |
2021-07 | 0.177 | 0.125 |
2022-01 | 0.179 | 0.128 |
2022-07 | 0.224 | 0.140 |
2023-01 | 0.222 | 0.142 |
2023-07 | 0.277 | 0.154 |
2024-01 | 0.271 | 0.155 |
Ephemeris comparison
Difference between NIMAv7 and JPL7 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.