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TY - CONF AU - Tsubota, K.T. AU - Mader, J.A. ED - Corvetti, Lou ED - Riches, Kathleen ED - Schaa, Volker RW TI - Keck Telescope Control System Upgrade J2 - Proc. of ICALEPCS2015, Melbourne, Australia, 17-23 October 2015 C1 - Melbourne, Australia T2 - International Conference on Accelerator and Large Experimental Physics Control Systems T3 - 15 LA - english AB - The Keck telescopes, located at one of the world's premier sites for astronomy, were the first of a new generation of very large ground-based optical/infrared telescopes with the first Keck telescope beginning science operations in May of 1993, and the second in October of 1996. The components of the telescopes and control systems are more than 15 years old. The upgrade to the control systems of the telescopes consists of mechanical, electrical, software and network components with the overall goals of improving performance, increasing reliability, addressing serious obsolescence issues and providing a knowledge refresh. This paper is a continuation of one published at the 2013 conference and will describe the current status of the control systems upgrade. It will detail the implementation and testing for the Keck II telescope, including successes and challenges met to date. Transitioning to nighttime operations will be discussed, as will implementation on the Keck I telescope. PB - JACoW CP - Geneva, Switzerland SP - 188 EP - 192 KW - controls KW - software KW - hardware KW - network KW - operation DA - 2015/12 PY - 2015 SN - 978-3-95450-148-9 DO - 10.18429/JACoW-ICALEPCS2015-MOPGF040 UR - http://jacow.org/icalepcs2015/papers/mopgf040.pdf ER -