astrodatagui: switch to lightkurve plotting

main/astrodatagui/AstrodataGUI.py

@@ -159,4 +159,4 @@ class AstrodataGUI(QtWidgets.QMainWindow):
         source = seqText[0]
         seq = seqText[1]
         filePath = self.starDB.getFilePath(mainName, source, seq)
-        self.flaredetectorPreview.plotFitsFile(filePath)
+        self.flaredetectorPreview.plotFitsFile(filePath, mainName)

main/astrodatagui/ui/FlaredetectorWidget.py

@@ -4,6 +4,7 @@ from matplotlib.backends.backend_qtagg import (
      FigureCanvas, NavigationToolbar2QT as NavigationToolbar)
 
 from astropy.io import fits
+import lightkurve as lk
 
 class FlaredetectorWidget(QtWidgets.QWidget):
     def __init__(self, name):
@@ -19,11 +20,10 @@ class FlaredetectorWidget(QtWidgets.QWidget):
         self.mainLayout.addWidget(toolbar)
         self.mainLayout.addWidget(fc)
 
-    def plotFitsFile(self, fitsFilePath):
+    def plotFitsFile(self, fitsFilePath, mainName: str):
         print(f"Plotting: {fitsFilePath}")
         self.figureAxis.clear()
-        hdu = fits.open(fitsFilePath, mode="readonly")
-        time = hdu[1].data["TIME"]
-        data = hdu[1].data["SAP_FLUX"]
-        self.figureAxis.plot(time, data)
+        lc = lk.read(fitsFilePath)
+        label = f"{mainName} - SAP Flux"
+        lc.plot(column="sap_flux", label=label, ax=self.figureAxis)
         self.figure.canvas.draw_idle()