The CALIPSO satellite launched on April 28, 2006. It successfully entered into the Aqua (A) -train of Earth observing
satellites along with its co-manifested CloudSat satellite. CALIPSO includes a Payload built for NASA by Ball
Aerospace & Technologies Corp. The Payload includes three instruments for earth remote sensing: A two-wavelength
polarization-sensitive lidar, a visible wide-field camera (WFC), and an infrared imaging radiometer (IIR). The
commissioning and performance assessment of the satellite were successfully completed in the first ninety days after
launch. This paper highlights some of the key instrument performance measured during commissioning, focusing on the
lidar and wide-field camera.