Well, in Watergate fashion I hearby resign from the Senate effectively at midnight, Saturday, December 4, 2004. Gov. MAS117 shall appoint an interim.
I think you have done the honourable thing by resigning.
However, the only way in which a new Senator can fill out the rest of your term (until January 7th) is for the electors of District 2 to elect a new one. The process by which Governors could appoint Senators to fill a vacant seat for the rest of a term was only applicable for Regional Senate seats.
There will need to be a special election if 1B is to have representation before January.