If you want a clearer picture of the open on NYSE, you need two feeds NYSE open book ultra and NYSE imbalance feed. The open book ultra will give you the continuous limit order book but the imbalance feed will give you the on-open order qty/price/side imbalance, which can be huge. Like if there is 10000 to buy at market on open but there is only 100 shares at top of book on the sell side, then the open price will drift as the imbalance closes.
Also the info you posted is for arca, not NYSE, the idea is similar except that NYSE only executes after 9:30am as part of the opening rotation, arca will match you as early as 4am (as you posted).
If you were interested in the arca open, the imbalance info is in the arca book xdp feed itself with the book info.