MarketDataPacketHeader

MsgSeqNum

public uint MsgSeqNum

value = marketDataPacketHeader.MsgSeqNum

Message sequence number

MsgSize

public ushort MsgSize

value = marketDataPacketHeader.MsgSize

Message size includes size of Market Data Packet Header

SendingTime

public ulong SendingTime

value = marketDataPacketHeader.SendingTime

Sending time in number of nanoseconds since Unix epoch, UTC timezone