1. College of Physics and Electronics Information, Yunnan Normal University , Kunming, Yunnan 650091 , People’s Republic of China
2. Department of Astronomy, School of Physics and Astronomy, Yunnan University , Kunming, Yunnan 650091 , People’s Republic of China
3. State Owned Assets and Laboratory Management Office, Yunnan Normal University , Kunming, Yunnan 650091 , People’s Republic of China