diff --git a/AstroLib/Include/AsCoordSystem_2023.h b/AstroLib/Include/AsCoordSystem_2023.h
index dc3cfffc2c04579ab74a8d7fba37121da7b03acf..ef63aed17ca27fc666321cc0a1b9b5979299f879 100644
--- a/AstroLib/Include/AsCoordSystem_2023.h
+++ b/AstroLib/Include/AsCoordSystem_2023.h
@@ -1,4 +1,4 @@
-#pragma once
+#pragma once
 #include"AsCoordinate.h"
 
 
@@ -108,4 +108,18 @@ void	AsCBFToLCMtx1(
 	double LA,
 	double lambda,
 	double phi,
-	CMatrix<double>& mtx);
\ No newline at end of file
+	CMatrix<double>& mtx);
+
+
+//********************************************************************
+/// J2000到VNC的坐标转换矩阵
+/// @Author	Peng Zihao
+/// @Date	2025/3/2
+/// @Input :
+/// @Param	pos			位置
+/// @Param	vel         速度
+/// @Output :
+/// @Param	mtx		    ICS到VNC的坐标转换矩阵
+/// @Return			    true=成功; false=输入错误
+//********************************************************************
+void	AsICSToVNCMtx(const CCoord3& pos, const CCoord3& vel, CMatrix<double> & mtx);
\ No newline at end of file