20180523
  day     Metop-B     23:11:52 - 23:22:46  
          Metop-A     23:51:41 - 00:05:12  
          Metop-B     00:50:53 - 01:04:31  
          Metop-A     01:32:21 - 01:43:59  
          NPP         02:17:13 - 02:28:13  
          Metop-B     02:33:51 - 02:39:25  
          NPP         03:55:33 - 04:09:19  
          NOAA-19     04:57:04 - 05:08:45  
          NOAA-19     06:36:17 - 06:50:04  
          NOAA-18     09:15:11 - 09:28:37  
          NOAA-18     10:56:07 - 11:09:02  
  night   Metop-A     09:35:55 - 09:41:30  
          Metop-B     10:31:22 - 10:43:00  
          Metop-A     11:10:50 - 11:24:27  
          Metop-B     12:10:11 - 12:23:39  
          Metop-A     12:52:37 - 13:03:28  
          NPP         14:39:20 - 14:46:00  
          NPP         16:16:38 - 16:30:33  
          NOAA-19     17:22:28 - 17:31:07  
          NPP         17:58:09 - 18:08:06  
          NOAA-19     19:00:57 - 19:15:11  
          NOAA-19     20:43:12 - 20:52:38  
          NOAA-18     21:40:27 - 21:52:15  
          NOAA-18     23:20:22 - 23:34:05