On the possibility of passive temperature control of containers with cryogenic liquids on the phobos surface

Creating a habitable base on Phobos is one of the most promising areas of Mars exploration. In connection with the need to create a scientific and technical foundation for the Mars development, it is relevant to analyze the possibilities of providing temperature conditions for containers with cryogenic liquids located in the most favorable part of the surface of Phobos, which is constantly facing Mars, for creating a base. For shielding tanks with cryogenic fuel, we proposed two options with the use of mirror systems. Such systems provide shielding the tanks from direct thermal radiation from the Sun and Mars, and thermal radiation from the Phobos surface. The first option considers a design using a parabolic shield in combination with a shield to reflect the Mars and the Sun direct radiation. The second scheme is a system with movable flat shields that include shields for heat insulation at night and during the day.