The Robotic Palomar 60-Inch Optical Afterglow Catalog: 2007

We present here the photometric results of the Robotic Palomar 60-inch Telescope (P60) observations for GRB optical afterglows. The quick response time and the size of the telescope allows us to observe the optical transients through V, R, I, g', i', z' filters, sometimes as early as 0.01 day after the trigger. Comparing the data obtained with the various filters we were able to compute color indices for the 1 day after the trigger epoch. The observations lasts until the OT fades below the detection threshold.