= Detrend system =

 * Queuing
 * Processing
 * Stacking
 * Normalization
 * Residuals
 * Rejection
 * Registration

= Detrend filenames =

All detrends generated using the dettool/pantasks system are created with the following filename structure:
{{{
 WORKDIR/CAMERA.DET_TYPE.DET_ID/CAMERA.DET_TYPE.STAGE.DET_ID.ITERATION.CLASS_ID.fits
}}}

These components are as follows:
 * WORKDIR : user specified (at time detRun queued) workdir 
 * CAMERA : camera for the detrend to be created (specified when queued)
 * DET_TYPE : type of detrend generated (see below)
 * DET_ID : database id for this detRun
 * STAGE : generally "norm", as the normalized detrend is used in most cases.
 * ITERATION : which rejection iteration this detrend is from.
 * CLASS_ID : class_id that this detrend matches.

= Detrend types =
 * DARK. Detrend to remove the camera dark current.  
 * DARKTEST. This is an intermediate testing version of a DARK.  It is constructed based on the same recipes as a regular DARK, but will not be accidentally selected for processing when finished (as processing only selects a valid DARK detrend).  However, as detrends are often constructed with this det_type (and then converted to a DARK, or registered as a DARK), filenames often contain this string.
 * VIDEODARK. This is a special (currently theoretical) DARK that is constructed from frames that have had video data taken on a cell.  This changes the electronic response of the detector, resulting in a different dark current on the images. 
 * FLAT.  Detrend to remove the pixel-to-pixel response of the detector.
 * FLATTEST.  Similar to a DARKTEST above, this detrend is a FLAT that was constructed with a parallel name to avoid being accidentally used in processing.
 * MASK. Manually constructed mask to remove bad areas of the detector.
 * VIDEOMASK.  Similar to a VIDEODARK above, but instead of correcting regions with discrepant dark current, these regions are masked out.
 * CTEMASK. Automatically constructed mask that contains information about regions with Charge Transfer Efficiency issues.  
 * FRINGE. Detrend to remove fringing patterns in the infrared.
 * LINEARITY. Manually constructed detrend listing the measured linearity response at low flux levels.
 * NOISEMAP. Detrend containing the read noise values as a function of detector position.  The regular noisemaps can be generated through the dettool system.  We currently use boosted noisemaps that require subsequent processing to add these boosts.

= Using detselect =

== -search ==

== -select ==

= Creation process =



= Current detrends =