MIPS: filtering 70 um photometry observations
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Post-BCD Tools
Offline 70um filtering of photometry observations with IDL
For photometry observations of a single source, we suggest using the following two procedures for cleaning up artifacts at 70 um. The IDL tools assume access to the IDL astrolib.(1) bcd_column_fiter.pro
- Calculates the median value for each column.
- Subtracts value for each column for each BCD.
- Updates the bcds in input list.
- Calculates median for each pixel for the data set to derive pixel-to-pixel additive correction (ignoring source and bad pixels). The procedure derives a one correction for the entire input data set (only one time correction). If used for a large data set, you may want to divide the data up into multiple sets in time order.
- Subtracts value from each pixel for each BCD.
- Updates the bcds in input list.
