  The development of the Keck All sky Precision Adaptive optics (KAPA) project
was initiated in September 2018 to upgrade the Keck I adaptive optics (AO)
system to enable laser tomography adaptive optics (LTAO) with a four laser
guide star (LGS) asterism. The project includes the replacement of the existing
LMCT laser with a Toptica laser, the implementation of a new real-time
controller (RTC) and wavefront sensor optics and camera, and a new daytime
calibration and test platform to provide the required infrastructure for laser
tomography. The work presented here describes the new daytime calibration
infrastructure to test the performance for the KAPA tomographic algorithms.
This paper outlines the hardware infrastructure for daytime calibration and
performance assessment of tomographic algorithms. This includes the
implementation of an asterism simulator having fiber-coupled light sources
simulating four Laser Guide Stars (LGS) and two Natural Guide Stars (NGS) at
the AO bench focus, as well as the upgrade of the existing TelSim on the AO
bench to simulate focal anisoplanatism and wind driven atmospheric turbulence.
A phase screen, that can be adjusted in effective altitude, is used to simulate
wind speeds up to 10 m/s for a duration of upto 3 s.
