Pipeline StagesΒΆ
The data from different observing modes needs to be processed with
the proper pipeline levels listed below. The pipeline, and step selection in a pipeline,
are usually based solely on the exposure type (exposure.type attribute).
End-to-end calibration of Roman data is divided into levels of
processing:
The Exposure Level Processing (ELP) consists of detector-level corrections applied to each resultant, followed by ramp fitting. The output of the exposure level processing is a count rate image per exposure, that is aligned to the Gaia reference system. The details differ for imaging and spectroscopic exposures and can be found at Exposure Level Processing.
The High Level Processing (HLP) uses overlapping exposures to match the sky background, detect aberrant data values and resample the image to produce a single undistorted product. Details are at: High Level Image Processing
The table below represents the same information as described above, but alphabetically ordered by pipeline class.
Pipeline Class |
Alias |
Used For |
|---|---|---|
roman_elp |
Exposure Level |
|
roman_hlp |
High Level |