flaredetector: flares need to have a certain duration

either have 1 point before and after the peak above a threshold
or have 2 points after the peak above a threhold

main/flaredetector/flaredetector.py

@@ -18,8 +18,18 @@ def moveFluxForFit(curPeakIndex, flux):
     Peak = flux[curPeakIndex] - 1
     return flarePoints, flareFitDataPoints, Peak
 
+def isValidFlarePoint(flareData):
+    threshold = 0.005
+    peakIndex = np.argmax(flareData)
+    if((flareData[peakIndex-1] > threshold and flareData[peakIndex+1] > threshold) or
+       (flareData[peakIndex+1] > threshold and flareData[peakIndex+2] > threshold)):
+        return True
+    return False
+
 def calculateFitForFlare(lightcurve, peakIndex):
     flarePoints, flareFitDataPoints, Peak = moveFluxForFit(peakIndex, lightcurve.flux)
+    if(not isValidFlarePoint(lightcurve.flux[flarePoints]-1)):
+        raise Exception("Flare not valid: not enough datapoints above mean")
     popt, pcov = curve_fit(lambda x, l, w: GaussExpo(x, Peak, l, w), flareFitDataPoints, lightcurve.flux[flarePoints]-1)
     fit = GaussExpo(flareFitDataPoints, Peak, *popt)
     flareFitDataPoints = flareFitDataPoints + peakIndex