This directory contains the calibration data (i.e., captures) for each station of the network, in the format of FITS files automatically acquired by FreeTure each 10 minutes during day- and night-time.
This directory is organized as follows:
captures/
↳ CODE/
↳ YYYYMM/
↳ CODE_YYYYMMDDTHHMMSS_UT-0.fit
[...]The dataset is subdivided as one directory per each camera, named by the camera CODE (e.g., ITPI01).
Within each one of those, data are organized with one directory for each month of acquisition in the format YYYYMM (e.g., 201903).
Each capture is named after the station code and the acquisition date-time, in the following convention:
CODE_YYYYMMDDTHHMMSS_UT-0.fit (e.g., ITPI01_20180100T001054_UT-0.fit).
Captures format
Each capture is saved as a FITS file (or compressed .fit.gz to save some disk space), enclosing the image itself (grey-scale) and a header with relevant metadata, also automatically produced by the Freeture software.
Captures can be open, visualized and saved as bitmap images with the PRISMA Widget.
An example of capture acquired by the ITPI01 - Pino Torinese camera is given below:
