20180512
  day     Metop-A     22:41:48 - 22:49:33  
          Metop-B     23:38:53 - 23:51:38  
          NOAA-18     00:00:18 - 00:12:16  
          Metop-A     00:19:28 - 00:33:20  
          Metop-B     01:18:54 - 01:31:38  
          Metop-A     02:01:06 - 02:10:20  
          NPP         02:23:10 - 02:34:38  
          NPP         04:01:53 - 04:15:32  
          NOAA-19     05:22:42 - 05:35:53  
          NOAA-19     07:03:34 - 07:16:21  
          NOAA-18     08:06:00 - 08:13:42  
          NOAA-18     09:42:22 - 09:56:34  
          NOAA-18     11:25:14 - 11:35:51  
  night   Metop-A     10:01:19 - 10:10:57  
          Metop-B     10:58:09 - 11:11:11  
          Metop-A     11:38:35 - 11:52:26  
          Metop-B     12:38:36 - 12:50:57  
          Metop-A     13:22:45 - 13:29:49  
          NPP         14:45:02 - 14:52:58  
          NPP         16:22:53 - 16:36:48  
          NOAA-19     17:47:51 - 17:59:37  
          NPP         18:04:38 - 18:13:55  
          NOAA-19     19:27:44 - 19:41:31  
          NOAA-19     21:11:42 - 21:16:21  
          NOAA-18     22:07:32 - 22:21:01