根据NGA发布的最新消息,WGS 84框架发布了新版本-WGS 84(2296),上一版本是G2139。以下是相关信息。
WGS 84 TERRESTRIAL REFERENCE FRAME (TRF)
NGA implemented a new realization of the WGS 84 TRF, named WGS 84 (G2296) in its orbit and clock products beginning on January 7, 2024.
This update ensures that the WGS 84 TRF remains consistent with the latest realization of the International Terrestrial Reference Frame, ITRF2020. WGS 84 (G2296) represents a shift of approximately 6.3 mm from the previous realization, WGS 84 (G2139), and has been demonstrated to provide a 0.7 cm improvement in accuracy relative to station positions calculated by the International GNSS Service (IGS).
ANTENNA OFFSET
With the release of WGS 84 (G2296) NGA orbit and clock products are produced using the IGS20 ANTEX Antenna Offset values.
链接:
NGA Geomatics - GNSS