It appears she is sailing on the Star from L.A. as that's the only NCL ship departing on 2-21-06.
The Star is scheduled to arrive at 9:00 am, and depart at 6:00 pm. Splitting the difference would be four and a half hours, so I would presume NCL will start boarding the ship around 1:30 pm. I would arrive at the pier around 1:00 pm.