increased the size of background region

views.py

@@ -173,8 +173,8 @@ class UpperLimitView(APIView):
         aperture_radius = 71  # radius of the aperture in arc seconds
         # HPD ~48 arcseconds
         # 90% ~100 arcseconds
-        annulus_inner = 142  # 2 * aperture_radius
-        annulus_outer = 284  # 4 * aperture_radius
+        annulus_inner = 213  # 3 * aperture_radius
+        annulus_outer = 355  # 5 * aperture_radius
 
         # CREATE SKYCOORD, CONVERT TO GALACTIC BECAUSE THE HEALPIX
         # MAP ITSELF WAS MADE IN GALACTIC COORDINATES