Geomagnetic flux update rate options.
| Member | Value | Description | 
|---|---|---|
| e3Hourly | 0 | 3-Hourly: updates using the eight values measured at three-hour intervals. | 
| e3HourlyInterp | 1 | 3-Hourly Interpolated: updates by interpolating the three-hour values. | 
| eDaily | 2 | Daily. | 
| e3HourlyCubicSpline | 3 | 3-Hourly Cubic Spline. | 





