Girasol, a sky imaging and global solar irradiance dataset

We built a system composed of VI and IR solar radiation cameras, a tracking system, anda pyranometer, to collect the data. A weatherproof enclosure contains the two USB cameras,and it is mounted on top of two servomotors. The cameras are connected to a motherboard thatruns a solar tracking algorithm. This motherboard is placed inside of a different weatherproofenclosure together with a router, a servomotor control unit, a data storage system, plus theirrespective power supplies. The enclosure’s degree of protection is IP66. This is an internationalstandard utilized for electronic equipment that provides protection against dust and water. The tracking system and DAQ software is currently operative. The software was programmed in Python 2. The system is placed on the top roof area of the Mechanical Engineer-ing building at UNM central campus (35.0821,−106.6259). The DAQ sessions can be visuallymonitored through a webpage. All devices were interconnected via a LAN network built by DHCP server.