added additional sig figs to unknowns adapter #280
added additional sig figs to unknowns adapter #280

UManPychron/pychron,USGSDenverPychron/pychron,NMGRL/pychron,NMGRL/pychron,NMGRL/pychron,USGSDenverPychron/pychron,NMGRL/pychron,UManPychron/pychron,USGSDenverPychron/pychron,UManPychron/pychron,UManPychron/pychron,USGSDenverPychron/pychron