fix spec sim bug

ObservationSim/Instrument/Chip/Chip.py

@@ -312,7 +312,7 @@ class Chip(FocalPlane):
             BoolDeadPix = False
 
         # Add sky background
-        if sky_map == None:
+        if sky_map is None:
             sky_map = filt.getSkyNoise(exptime=self.exptime)
         elif img.array.shape != sky_map.shape:
             raise ValueError("The shape img and sky_map must be equal.")

ObservationSim/ObservationSim.py

@@ -218,7 +218,7 @@ class Observation(object):
             pointing_ID=pointing_ID,
             timestamp_obs=timestamp_obs,
             pointing_type=pointing_type,
-            sky_map=sky_map)
+            sky_map=sky_map, tel = self.tel)
         
         if pointing_type == 'MS':
             datetime_obs = datetime.fromtimestamp(timestamp_obs)