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Extended downtime notice

Due to a planned outage on Friday, April 12th starting at noon through Sunday, April 14th, access to this site will be unavailable during this time. We apologize for any inconvenience.

Technical Information About HUT

The following items will link you to Technical Information about the instrument, its calibration, and the reduction of the data. This information is intended for the serious user of HUT data. For a less technical description, please see What Is HUT and What Does It Do?