[PROBLEMS] To provide an indoor / outdoor determination program and the like that can determine indoors and outdoors with higher accuracy than a determination method based on satellite reception intensity that makes it difficult to set a threshold value. [Solution] The indoor / outdoor determination program is configured to detect whether the mobile terminal exists indoors based on at least one of satellite elevation angle information and satellite azimuth information acquired directly or indirectly from a satellite receiver provided in the mobile terminal. Or the step of determining whether it is outdoor.
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