From July 14 to 16, 2020, the National Satellite Ocean Application Service organized a 1m C-SAR satellite (2 satellites) digital transmission system-Mudanjiang ground receiving system docking test at the Mudanjiang Marine Satellite Ground Receiving Station. Nearly 20 people from the General Department and Xi'an Branch of the Fifth Academy of China Aerospace Science and Technology Corporation , China Centre For Resources Satellite Data and Application ,National Satellite Ocean Application Service participated in the test.

The test was carried out in accordance with the requirements of the letter from the General Department of the Fifth Academy of Aerospace Science and Technology Corporation and the instructions of the leaders of the National Satellite Ocean Application Service. The Engineering Department of the Satellite Center and the Mudanjiang Ground Station provided overall coordination and guarantee for the test.

The docking test is carried out in accordance with the contents and procedures of the "1m C-SAR Satellite (2 satellites) Satellite-to-Ground Data Transmission Link Docking Test Program and Rules". With the joint efforts of the staff of the test team, after three days of intensive work, the test was successfully completed and the relevant indicators were verified, the results met the requirements of the outline ,the test achieved the expected results, and the ground system could normally receive and obtain the satellite data after the launch of the 1-meter C-SAR satellite.