Update default MA table number in romanisim-make-image. (#191)

scripts/romanisim-make-image

@@ -82,7 +82,7 @@ if __name__ == '__main__':
                         help=('UTC Date and Time of observation to simulate in ISOT format.'))
     parser.add_argument('--level', type=int, default=2,
                         help='1 or 2, for L1 or L2 output')
-    parser.add_argument('--ma_table_number', type=int, default=1)
+    parser.add_argument('--ma_table_number', type=int, default=4)
     parser.add_argument('--nobj', type=int, default=1000)
     parser.add_argument('--previous', default=None, type=str,
                         help=('previous simulated file in chronological order '