Accessor for (Cluster EFW Summary Parameters)
Acknowledgment:
CDAS services from NASA/Goddard Space Physics Data Facility (R. McGuire).

Time span:
Valid formats are YYYY-MM-dd,HH:mm and YYYY-DDD,HH:mm. (Times are optional.)
If the end date is omitted, it will default to one day after the start date.
Begin date: 2001-01-01,   End date: 2008-11-20.
from:     to:

Parameter name Parameter description
Status__CL_SP_EFW EFW status
State_wec__CL_SP_EFW WEC status
E_dusk__CL_SP_EFW Duskward Electric Field, In spin plane perp to x-gse
E_pow_f1__CL_SP_EFW E-field spectral density, Freq range 0.3-10 Hz, from EFW waveform
E_pow_f2__CL_SP_EFW E-field spectral density, Freq range 10-180 Hz, from EFW waveform
E_sigma__CL_SP_EFW Electric Field Variation, Based on spin plane component
U_probe_sc__CL_SP_EFW Probe potential, Relative to Spacecraft
Processing may take a few minutes.