Home / Standards / GB/T 40523-2021 GB/T 40523-2021 Active Technology specification for geometric calibration of 1:25000 1:50000 optical mapping satellite 1:25000 1:50000光学测绘卫星几何检校技术规范 Standard Type GBT ICS 07.040 CCS A75 Status 现行 Issue Date 2021-10-11 Implementation 2021-10-11 Responsible Dept 自然资源部(测绘地理) Drafting Unit N/A