C/2019 U5 PanSTARRS
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Comet C/2019 U5 was discovered on 22 October 2019, about 3.5 yr before its perihelion passage (10.38 au from the Sun). Later two pre-discovery observations were found from 11 October 2019 (heliocentric disctance: 10.45 au). In the moment of orbit determination, this comet was still observed.
Currently, solutions (GR and NG) based on pre-perihelion data are given. Therefore, the data arc span over 3.46 yr in a range of heliocentric distances from 10.45 au to 3.62 au.
This is Oort spike comet.
Currently, solutions (GR and NG) based on pre-perihelion data are given. Therefore, the data arc span over 3.46 yr in a range of heliocentric distances from 10.45 au to 3.62 au.
This is Oort spike comet.
solution description | ||
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number of observations | 3637 | |
data interval | 2019 10 11 – 2023 03 29 | |
data arc selection | data generally limited to pre-perihelion (PRE) | |
range of heliocentric distances | 10.45 au – 3.62 au (perihelion) – 3.62 au | |
detectability of NG effects in the comet's motion | comet with NG effects strongly manifested in positional data fitting | |
type of model of motion | GR - gravitational orbit | |
data weighting | YES | |
number of residuals | 7235 | |
RMS [arcseconds] | 0.35 | |
orbit quality class | 1a+ |
orbital elements (heliocentric ecliptic J2000) | ||
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Epoch | 2023 02 25 | |
perihelion date | 2023 03 29.85287312 | ± 0.00011542 |
perihelion distance [au] | 3.62419383 | ± 0.00000088 |
eccentricity | 1.00147510 | ± 0.00000078 |
argument of perihelion [°] | 181.497456 | ± 0.000024 |
ascending node [°] | 2.637374 | ± 0.000003 |
inclination [°] | 113.520595 | ± 0.000003 |
reciprocal semi-major axis [10-6 au-1] | -407.01 | ± 0.22 |