C/2013 B2 Catalina
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Comet C/2013 B2 was discovered on 16 January 2013 during Catalina Sky Survey, that is 5.5 months before perihelion passage, and next observed 1.2 yr in a range of heliocentric distances: 4.01 au – 3.734 au (perihelion) – 4.43 au.
C/2013 B2 had its closest approach to the Earth on 23 January 2013 (3.251 au, one week after discovery, see figure).
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a more tight future orbit.
See also Królikowska and Dybczyński 2017.
C/2013 B2 had its closest approach to the Earth on 23 January 2013 (3.251 au, one week after discovery, see figure).
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a more tight future orbit.
See also Królikowska and Dybczyński 2017.
| solution description | ||
|---|---|---|
| number of observations | 132 | |
| data interval | 2013 01 16 – 2014 03 30 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 4.01 au – 3.73 au (perihelion) – 4.43 au | |
| detectability of NG effects in the comet's motion | comet with determinable NG~orbit | |
| type of model of motion | GR - gravitational orbit | |
| data weighting | YES | |
| number of residuals | 260 | |
| RMS [arcseconds] | 0.30 | |
| orbit quality class | 1a | |
| previous orbit statistics, both Galactic and stellar perturbations were taken into account | ||
|---|---|---|
| no. of returning VCs in the swarm | 5001 | * |
| no. of escaping VCs in the swarm | 0 | |
| no. of hyperbolas among escaping VCs in the swarm | 0 | |
| previous reciprocal semi-major axis [10-6 au-1] | 36.89 – 56.76 – 59.61 | |
| previous perihelion distance [au] | 5.74 – 6.01 – 25.5 | |
| previous aphelion distance [103 au] | 33.5 – 35.2 – 54.2 | |
| time interval to previous perihelion [Myr] | 2.16 – 2.33 – 2.51 | |
| percentage of VCs with qprev < 10 | 86 | |
| percentage of VCs with 10 < qprev < 20 | 3 | |
| percentage of VCs with qprev > 20 | 11 | |
Time distribution of positional observations with corresponding heliocentric (red curve) and geocentric (green curve) distance at which they were taken. The horizontal dotted line shows the perihelion distance for a given comet whereas vertical dotted line — the moment of perihelion passage.
| previous orbit statistics, here only the Galactic tide has been included | ||
|---|---|---|
| no. of returning VCs in the swarm | 5001 | * |
| no. of escaping VCs in the swarm | 0 | |
| no. of hyperbolas among escaping VCs in the swarm | 0 | |
| previous reciprocal semi-major axis [10-6 au-1] | 53.92 – 56.77 – 59.63 | |
| previous perihelion distance [au] | 5.06 – 5.38 – 5.8 | |
| previous aphelion distance [103 au] | 33.5 – 35.2 – 37.1 | |
| time interval to previous perihelion [Myr] | 2.16 – 2.33 – 2.51 | |
| percentage of VCs with qprev < 10 | 100 | |