WINERED Exposure Time Calculator

The ETC has been upgraded on 2023 October 02. The old version is available here. Please use the new version with caution.

There was a bug in calc_obstime.py which affected fainter objects requiring long integrations over ∼1 hour in total. Please use the latest version (20231007 or later when available).


(c) 2023 Noriyuki Matsunaga