Reapply fix and add requirement

requirements.txt

@@ -3,3 +3,4 @@ numpy
 astropy
 matplotlib
 numba
+scipy
\ No newline at end of file

scintillation/Calibrationlib.py

@@ -49,12 +49,13 @@ def model_flux(calibrator, frequency):
     if calibrator in Cal_dict.keys():
         parameters = Cal_dict[calibrator]
     else:
-        raise ValueError(calibrator, "is not in the calibrators list")
+        parameters = [1., 0.]
+        # raise ValueError(calibrator, "is not in the calibrators list")
 
     flux_model = 0
     freqs = frequency * 1.e-3  # convert from MHz to GHz
     for j, p in enumerate(parameters):
-        flux_model += p * np.log10(frequency) ** j
+        flux_model += p * np.log10(freqs) ** j
     flux_model = 10 ** flux_model  # because at first the flux is in log10
     return flux_model