On December 27, the carrier rocket Long March-5 Y3 blasted off 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.
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)
The Long March-5's "camera device of measurement system" consists of four models, which are installed in various parts of the Long March-5 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 successful application of the Long March-5 carrier rocket camera device reflects our active participation in major national projects, laying a solid foundation for the research institute to apply multi-scene precision optical imaging and measurement technology in heavy carrier rockets in the future.