;+
; Name: hsi_mem_ge_percent_lambda
;
; Purpose: Get the value of the parameter 'percent_lambda' for the routine 'mem_ge' in the case of RHESSI data
;
; Method: computes the value of 'percent_lambda' as a function of the sigma Signal to Noise Ratio (SNR) for 
;         a given visibility bag. The value of the parameters used in the function are set in order to obtain 
;         a good regularization for RHESSI data.
;
; Calling arguments:
;  snr_value -  value of the Signal to Noise Ratio (SNR) for a given visibility bag
;
; Output: 
;   value of 'percent_lambda' used in the routine 'mem_ge'
;
; Written: Massa P., 6-Aug-2019 
; Modifications:
;
;-
;
function hsi_mem_ge_percent_lambda, snr_value

  percent_lambda = 11./(snr_value^2. + 383.) 
  return, percent_lambda

end