Home / Standards / GB/T 44485-2024 GB/T 44485-2024 Active Real time positioning grading service contents and data format of BeiDou ground-based augmentation system 北斗地基增强系统实时定位分级服务内容及数据格式 Standard Type GBT ICS 07.040 CCS A75 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 自然资源部(测绘地理) Drafting Unit N/A