????? ‘????’? 27? ??? ????? “????? ???? ???? ???? ???? ?? ??? ??? ?? ?? ??? ???? ??? ???? ??? ?? ??? ??? ??? ????? ????”? ??? ???.

????? “??? 76? ???? ????? ??? ???? ??? ?? EGM96??? ?? ???(重力場) ??? ???? ????”? “??―?? ??? ????? ??? ???”? ???.

???? ??? ????? ??? ??―?? ??? ?????? ???? ??? ??? ?? ??? 1918? ?? ??? ??? ???? ?? ??? ??? ???.

〈???APDPA??〉