The photoelectric photometry and polar imetry of comet Shoemaker-Levy
1991a(1) was conducted with the 1 m telescope at Sanglok Observatory,
Tadjikistan during 27 May-2 August 1992. Estimates of production rates
for species C-3 and C-2 and dust particles have been made. We find th
at abundances of observed species are typical of most comets previousl
y observed. The polarization at phase angles 60 degrees-70 degrees is
somewhat smaller than the polarization of dusty comets at the same pha
se angles.