This section describes Elixir Database interface tools provided by Ohana. The Elixir database consists of the following tables:

• imreg : all of the raw images
• detrend : the master detrend images
• photcode : the nominal filter transformation information
• zeropoints : the measured zero-point data values
• transparency : the measured transpareny over long periods (nights or lunations)

In addition, the DVO program is used to maintain a database of the photometric measurements of all detected objects. DVO is described in a separate section.