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Table 1

Specifications of Kodaikanal white-light images.

Parameter Description

Observation period 1904 to 2011
Telescope 15 cm objective with f/15 beam
Original storage Plates/films
Total number of plates 31800 (1904 to 2011)
Average number of plates per year 290
Calibration period 1921 to 2011
Final image size 4k × 4k
Pixel scale 0.62′′
Available image format FITS and JPG
Raw images available at http://kso.iiap. res.in

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