Observers: Emilio Davis, Jaime Robertson, Ezequiel Treister
Location: Las Campanas Observatory, Chile
Date: January 29-30, 1999
Observations were done using the telescope Swope (40 inches) of the Las Campanas observatory and a CCD camera (Site #3) with visible filters (U,B,V,R). Apparent pixel size of the detector used was 0.43''. This telescope did not have differential guiding to follow moving objects as planet or comets, that is why the integration time was limited at 2 min for both comet observations to avoid any effect of smearing on the images due to the motion of the comet during the exposure (in 2 min the motion is expected to be inferior at the pixel size).