Nov 21 9:17 am PST
From Vadenbergs website:
Vehicle will launch Iridium Next commercial communications satellites 31-40. This launch occurs 30 minutes after Vandenberg AFB sunset. The rocket's bright flame should be visible over a wide area. The launch could be impressive beginning at T+ 2 minutes 12 seconds when simulations show the exhaust plume will be illuminated at high altitude by the sun.