The recharge cycle was months into the mission and Tennessee was repairing the sails for the 1st, of 8 recharge cycles. The particle blast disrupted the 1st recharge.
"We've got eight more recharge cycles to go before Origae-6?"
Alien: Covenant novelization, page 42.
"How long until we reach Origae-6?"
"Seven years, four months, three weeks, two days,"
Alien: Covenant novelization, page 84.
A recharge cycle appears less than one year.
Planet 4 Coordinates?
When she dropped back down, her nose was bloody from impact.....Woozy from months spent in hypersleep,