import os os.chdir("/Users/cham/projects/csst/test/") fp = "MSC_MS_210527171000_100000279_16_raw.fits" from csst.msc import CsstMscImgData data = CsstMscImgData.read(fp) print("data: ", data) print("instrument: ", data.get_l0keyword("pri", "INSTRUME")) print("object: ", data.get_l0keyword("pri", "OBJECT"))