n January $15,2017($today $=$ time $0),$ a firm is worried that the interest rate may decline in the next six months, when it will receive the payment from the sale of a piece of equipment. In particular, the firm will receive on July $15,2017$ a $$200$ million receivable that needs to be invested for another six months. As a hedging strategy, the firm decides to go long on $3-$month SOFR futures contracts and buys $200$ June $2017$ futures contracts. The quoted futures price on this day is $$91\mathrm{.}72.$ The firm sells the future contract on July $15$th$.$ Over the life of the contract the prices move as given below.

$15-$Jan$-1791\mathrm{.}72$

$16-$Jan$-1791\mathrm{.}88$

$17-$Jan$-1791\mathrm{.}65$

$.$

$.$

$15-$July$-1793\mathrm{.}59$

What is the reference quarter for the June $2017$ Sofr Futures Contracts?