Russian to English Art/Literary Photography/Imaging (& Graphic Arts)

Смотровая площадка с открытым обзором, позволяющая производить съемки полетов ***«по солнцу»***.

Trying to figure out what it means to fly ***по солнцу***. Do I understand it right, that it is the situation when an aircraft is flying so that the sun is either on the left or on the right side of the it? And if that's right, what would be the translation?

Thank you!