20180516
  day     Metop-A     22:57:57 - 23:08:07  
          Metop-B     23:55:51 - 00:09:16  
          Metop-A     00:36:39 - 00:50:23  
          NOAA-18     00:56:31 - 01:02:21  
          Metop-B     01:36:24 - 01:48:14  
          Metop-A     02:19:07 - 02:26:01  
          NPP         02:47:17 - 03:00:09  
          NPP         04:27:29 - 04:36:55 *   -201s
          NOAA-19     04:38:25 - 04:48:35  
          NOAA-19     06:16:28 - 06:30:32  
          NOAA-19     08:01:31 - 08:08:17  
          NOAA-18     08:56:45 - 09:09:23  
          NOAA-18     10:36:39 - 10:50:21  
  night   Metop-B     09:40:28 - 09:45:20  
          Metop-A     10:17:29 - 10:28:37  
          Metop-B     11:15:01 - 11:28:34  
          Metop-A     11:55:51 - 12:09:30  
          Metop-B     12:56:35 - 13:07:42  
          NPP         15:08:49 - 15:19:53  
          NPP         16:48:01 - 17:01:41  
          NPP         18:31:10 - 18:36:36  
          NOAA-19     18:41:22 - 18:55:26  
          NOAA-19     20:22:58 - 20:34:06  
          NOAA-18     21:22:09 - 21:32:16  
          NOAA-18     23:01:17 - 23:15:22