20180517
  day     Metop-A     22:38:29 - 22:45:35  
          Metop-B     23:35:26 - 23:48:02  
          Metop-A     00:15:53 - 00:29:44  
          NOAA-18     00:44:03 - 00:51:56  
          Metop-B     01:15:21 - 01:28:14  
          Metop-A     01:57:22 - 02:06:59  
          NPP         02:29:09 - 02:41:02  
          NPP         04:08:15 - 04:21:44  
          NOAA-19     04:27:39 - 04:36:34  
          NOAA-19     06:04:53 - 06:18:58  
          NOAA-19     07:48:43 - 07:57:37  
          NOAA-18     08:45:34 - 08:57:29  
          NOAA-18     10:24:46 - 10:38:48  
  night   Metop-A     09:57:58 - 10:07:14  
          Metop-B     10:54:44 - 11:07:38  
          Metop-A     11:35:00 - 11:48:51  
          Metop-B     12:34:59 - 12:47:31  
          Metop-A     13:18:47 - 13:26:31  
          NPP         14:50:53 - 14:59:49  
          NPP         16:29:09 - 16:43:04  
          NPP         18:11:10 - 18:19:43  
          NOAA-19     18:29:52 - 18:43:43  
          NOAA-19     20:11:07 - 20:23:06  
          NOAA-18     21:11:09 - 21:19:39  
          NOAA-18     22:49:36 - 23:03:44