fix pointing ID counting issue

ObservationSim/_util.py

@@ -53,6 +53,7 @@ def generate_pointing_list(config, pointing_filename=None, data_dir=None):
         for line in f:
             if run_pointings and iline not in run_pointings:
                 iline += 1
+                ipoint += 1
                 continue
             line = line.strip()
             columns = line.split()