By Ben Eisen
NEW YORK (MarketWatch) -- Treasury prices moved higher Wednesday before an auction of 10-year notes 10_YEAR -0.91% , which will serve as one test of buyer demand for longer-term U.S. government debt. The 10-year note yield, which moves inversely to price, fell 1.5 basis points on the day to 2.631%. The 5-year note 5_YEAR -1.29% yield fell 2 basis points to 1.373%, and the 30-year bond 30_YEAR -0.64% yield fell 2 basis points to 3.715%. The $24 billion auction of 10-year notes comes after a successful auction of 3-year notes on Tuesday and before a $16 billion auction of 30-year bonds on Thursday. A number of Federal Reserve officials are also scheduled to speak Wednesday as questions about the timing of a scale-back in the Fed's bond-purchase program continue.