B —ˆÎ] ã@sdZddlZd d d „ZdS) zO File of helper functions for cbp exposures on the StarDICE system N. Mondrik éNçH¯¼šò×z>éé,Tç€q@çD@c Cs¨t |¡}|d}t d¡}t ||dd…df||dd…df¡} t | ¡|} || | |k<|| | |k<|| | |k<t| ƒdkr”| d} | d} |r | | fS| SdS)a :param wavelength: Wavelength[s] for which exposure time is to be calculated. Must be in descending order. :param charge_level: Target charge level on integrating sphere photodiode :param tmin: Minimum exposure time. :param tmax: Maximum exposure time. :param return_nd_pos: Specifies whether to return an array of ND filter wheel positions :param nd_max: ND filter wheel angle for maximum throughput :param nd_min: ND filter wheel angle for minimum throughput :return t: Estimated exposure time gH¯¼šò×z>zExpected_exp_times_1e-7.txtNrr)ÚnpÚ atleast_1dÚloadtxtÚinterpÚ ones_likeÚlen) Ú wavelengthZ charge_levelÚtminÚtmaxZ return_nd_posZnd_maxZnd_minZ scale_factorZmapfileÚtZnd_pos©rú*/home/dice/stardice/scheduler/cbpassist.pyÚ calc_exp_time s  *    r)rrrTrr)Ú__doc__ÚnumpyrrrrrrÚs