"Long March-5" Y3, China's carrier rocket blasted off on December 27 from the Wenchang Spacecraft Launch Site in Hainan, China. After 2,220 seconds later, the SJ-20 satellite was sent into its planned orbit. The whole process of launch and flight is recorded by the rocket-borne optical devices and sent back to the ground as live video watched worldwide.
Launch scence of Long March-5 Y3 (Image by CCTV)
The eyes on "Long March-5" witness this great moment is named "camera device of measurement system". It was developed and supplied by Laboratory of Optical Imaging Monitoring and Measurement Technology of Aircraft from Xi’an Institute of Optics and Precision Mechanics (XIOPM) of CAS. It is worth mentioning that similar rocket-borne optical equipment was successfully used in many important national space missions such as "Shenzhou 8" and "Tiangong-1".
The camera devices of measurement system (Image by XIOPM)
"Camera device of measurement system" of the "Long March-5" consists of four models, which are installed in various parts of the carrier rocket respectively. They are mainly used to monitor the working process of the rocket during flight, such as engine compartment, booster separation, fairing separation, satellite-rocket separation. All the recorded video was sent to the ground command and control center and also used as live telecast.
The separation of first stage and second stage (Image by CCTV)
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