The dust coma environment of the short period comets 32P/Comas Solá, 56P/Slaughter-Burnham, and 78P/Gehrels 2 from ground-based observations

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Table 1

Orbital characteristics and elements of the target comets. All data from the JPL Horizon Database.

Comet	P^a [y]	τ^b	q^c [AU]	e ^d	ω^e [°]	Ω^f [°]	i^g [°]	T _J ^h

32P/Comas Solá	8.80	1 Apr. 2005	1.83	0.569	45.93	60.79	12.93	2.67
56P/Slaughter-Burnham	11.54	15 Jan. 2005	2.54	0.504	44.08	346.27	8.16	2.71
78P/Gehrels 2	7.22	27 Oct. 2004	2.01	0.463	192.97	210.54	6.25	2.89

Notes.

^(a)

Orbital period

^(b)

Perihelion time closest to the time of observations.

^(c)

Perihelion distance.

^(d)

Orbital eccentricity.

^(e)

Perihelion argument (J2000).

^(f)

Nodal line argument (J2000).

^(g)

Orbital plane inclination (J2000).

^(h)

Tisserand parameter.

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