C/1895 W1 Perrine
more info
C/1895 W1 was discovered on 17 November 1895 by Charles Dillon Perrine (Lick Observatory, California, USA), that is about a month before its perihelion passage, and it was last seen on 10 August 1896 [Kronk, Cometography: Volume 2].
This comet made its closest approach to the Earth on 14 December 1895 (0.794 au), that is 4 days before perihelion passage.
Solutions given here are based on data spanning over 0.726 yr in a range of heliocentric distances from 0.92 au through perihelion (0.192 au) to 4.01 au.
This comet suffers small planetary perturbations during its passage through the planetary system; these perturbations lead to a more tight future orbit with a semimajor axis of about 2,300 au (see future barycentric orbits).
See also Królikowska 2020.

solution description
number of observations 103
data interval 1895 11 18 – 1896 08 10
data type perihelion within the observation arc (FULL)
data arc selection entire data set (STD)
range of heliocentric distances 0.92 au – 0.19 au (perihelion) – 4.01 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 158
RMS [arcseconds] 2.67
orbit quality class 1b
orbital elements (barycentric ecliptic J2000)
Epoch 1600 09 30
perihelion date 1895 12 18.20740585 ± 0.00012953
perihelion distance [au] 0.18954272 ± 0.00000147
eccentricity 1.00002552 ± 0.00000221
argument of perihelion [°] 272.520143 ± 0.000474
ascending node [°] 321.665537 ± 0.000607
inclination [°] 141.701122 ± 0.000222
reciprocal semi-major axis [10-6 au-1] -134.64 ± 11.68
file containing 5001 VCs swarm
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.
Six 2D-projections of the 6D space of original swarm including 5001 VCs. Each density map is given in logarithmic scale presented on the right in the individual panel.