The first system was charted after 42695.3. The last unmanned probe showed that one of the planets in this system had a thriving ecosystem. By the time the Enterprise had scanned the planet, it had been destroyed by geological instability. The Enterprise entered the second system on stardate 42696.3. This was the first system on which Acting Ensign Wesley Crusher performed a planetary mineral survey of the planets in the sector. Wesley uses both "planetary mineral survey" as well as "planetary geological survey" interchangeably.