This public target from HiWish requested to investigate the relationship between the dark spots in the fossa and surrounding dark mantle deposits. Orcus Patera was first imaged by Mariner 4, and is a depression about 380 kilometers long and 140 kilometers wide. Its formation is unkown.

ID: ESP_074739_1935
date: 7 July 2022
altitude: 282 km

https://uahirise.org/hipod/ESP_074739_1935
NASA/JPL-Caltech/University of Arizona
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