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RAW data

The RAW data is a three-dimensional image, which is slightly reduced from the original product generated by Tomo-e Gozen. The differences between RAW data and the original product are tabulated below.

RAW data Original Product
Image Size 2156×1128 2160×1200
Bias Subtraction True False
Dark Subtraction False False
Flat-field Corrrection False False

Since part of reference pixels are chopped off, the image size of the RAW data is smaller than that of the original product. Note that the image size can be changed in the partial readout mode. The bias pattern is subtracted in the RAW data. Refer to Bias Subtraction section for details of the bias subtraction.

FMTTYPE keyword of the RAW data is set TOMOE-IMAGE-RAW.