The PENTAX O-GPS2 GPS Module records and embeds latitude, longitude, altitude data at the time of shooting into image files. It can now also parse information from GLONASS and Galileo systems, on top of the US standard GPS and Japanese QZSS. When mounted on the corresponding PENTAX DSLR cameras body, the O-GPS2 also offers the advanced ASTROTRACER function, which couples the unit with the camera's SR (Shake Reduction) system for the effortless tracing and photography of celestial bodies. The unit calculates the movement of stars, planets, and other bodies using the latitude obtained from the location data and the camera's alignment data (horizontal and vertical inclinations and aspect) obtained from its magnetic and acceleration sensors, then shifts the camera's image sensor in synchronization with the movement of the objects. It also makes astrophotography much simpler, as it requires only a tripod and eliminates the need for an additional accessory such as an equatorial telescope.