  The results of the photometric observations of comet C/2009 P1 (Garradd)
performed at the 60-cm Zeiss-600 telescope of the Terskol observatory have been
analyzed. During the observations, the comet was at the heliocentric and
geocentric distances of 1.7 and 2.0 AU, respectively. The CCD images of the
comet were obtained in the standard narrowband interference filters suggested
by the International research program for comet Hale-Bopp and correspondingly
designated the 'Hale-Bopp (HB) set'. These filters were designed to isolate the
BC ($\lambda$4450/67 {\AA}), GC ($\lambda$5260/56 {\AA}) and RC
($\lambda$7128/58 {\AA}) continua and the emission bands of C2
($\lambda$5141/118 {\AA}), CN ($\lambda$3870/62 {\AA}), and C3
($\lambda$4062/62 {\AA}). From the photometric data, the dust production rate
of the comet and its color index and color excess were determined. The
concentration of C2, CN, and C3 molecules and their production rates along the
line of sight were estimated. The obtained results show that the physical
parameters of the comet are close to the mean characteristics typicalof the
dynamically new comets.
