supported by the National Natural Science Foundation of China(grant Nos.11873026 and 11273014);the Joint Research Fund in Astronomy(grant No.U1431227);the science research grants from the China Manned Space Project with No.CMS-CSST-2021-B08;Excellent Postgraduate Recommendation Scientific Research Innovative Cultivation Program of Jinan University。
The 80 cm azimuthal telescope has newly been mounted at Yaoan Station,Purple Mountain Observatory since2018.The astrometric performance of the telescope is tested in the following three aspects.(a)The geometric distor...
support from the staff at the Lijiang 2.4 m telescope;Funding for the telescope has been provided by CAS and the People’s Government of Yunnan Province;financially supported by the National Natural Science Foundation of China(Grant Nos.U1431227 and11273014)
The geometric distortion of a CCD field of view has a direct influence on the positional measurements of CCD observations. In order to obtain high precision astrometric results, the geometric distortion should be deri...