C/1954 O2 Baade
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Comet C/1954 O2 was discovered on 31 July 1954, about one year before perihelion passage, and was last seen on 26 November 1957 [Kronk, Cometography: Volume 4].
The comet made its closest approach to the Earth on 15 December 1955 (3.07 au), four months after perihelion passage.
Solution given here is based on data spanning over 3.3 yr in a range of heliocentric distances: 4.98 au – 3.87 au (perihelion) – 7.75 au.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a tighter future orbit (see original and future barycentric orbits).
See also Królikowska and Dybczyński 2017.
The comet made its closest approach to the Earth on 15 December 1955 (3.07 au), four months after perihelion passage.
Solution given here is based on data spanning over 3.3 yr in a range of heliocentric distances: 4.98 au – 3.87 au (perihelion) – 7.75 au.
This Oort spike comet suffers small planetary perturbations during its passage through the planetary system that lead to a tighter future orbit (see original and future barycentric orbits).
See also Królikowska and Dybczyński 2017.
| solution description | ||
|---|---|---|
| number of observations | 87 | |
| data interval | 1954 08 10 – 1957 11 26 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 4.98 au – 3.87 au (perihelion) – 7.75 au | |
| detectability of NG effects in the comet's motion | NG effects not determinable | |
| type of model of motion | GR - gravitational orbit | |
| data weighting | YES | |
| number of residuals | 156 | |
| RMS [arcseconds] | 1.19 | |
| 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] | 40.49 – 44.34 – 46.70 | |
| previous perihelion distance [au] | 140 – 490 – 840 | |
| previous aphelion distance [103 au] | 42.6 – 44.6 – 48.6 | |
| time interval to previous perihelion [Myr] | 2.7 – 3.1 – 3.6 | |
| percentage of VCs with qprev < 10 | 3 | |
| percentage of VCs with qprev > 20 | 97 | |
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] | 42.04 – 47.06 – 52.07 | |
| previous perihelion distance [au] | 1.4 – 1.9 – 2.4 | |
| previous aphelion distance [103 au] | 38.4 – 42.5 – 47.6 | |
| time interval to previous perihelion [Myr] | 2.7 – 3.1 – 3.7 | |
| percentage of VCs with qprev < 10 | 100 | |