One SYS / SCALE FACTOR header record.
SYS / SCALE FACTOR
factor is what the stored observations were divided by; the values the observation accessors return are already physical. An empty codes list means every code of the system.
factor
codes
@type t() :: %Sidereon.GNSS.RINEX.Observations.ScaleFactor{ codes: [String.t()], factor: float(), system: String.t() }