subsolar
/sʌbˈsəʊlə/adjective
1Earthly, terrestrial (often in contrast to heavenly).
2 Astronomy and Geography. Of a point on the earth: having the sun in the zenith (directly overhead); relating to this point. Also in extended use. Especially in subsolar point.
Origin
Mid 17th century. From sub- + solar, originally after post-classical Latin subsolaris earthly, exposed to the sun. Compare subsolary.