20180502
  day     Metop-A   * 22:50:40 - 22:57:23     -129s
          Metop-B     23:45:46 - 23:58:50  
          NOAA-18     00:16:46 - 00:27:28  
          Metop-A   * 00:28:58 - 00:40:29     -138s
          Metop-B     01:26:01 - 01:38:25  
          Metop-A     02:08:35 - 02:16:59  
          NPP       x 02:11:16 - 02:21:46        0s
          NPP         03:49:13 - 04:01:08 *   -116s
          NOAA-19     04:02:38 - 04:07:07  
          NPP       x 05:34:38 - 05:39:41        0s
          NOAA-19     05:37:23 - 05:51:09  
          NOAA-19     07:19:17 - 07:31:02  
          NOAA-18     08:20:39 - 08:30:31  
          NOAA-18     09:58:20 - 10:12:37  
          NOAA-18     11:42:41 - 11:50:53  
  night   Metop-A   x 10:08:04 - 10:18:22        0s
          Metop-B     11:04:59 - 11:18:16  
          Metop-A   * 11:52:23 - 11:59:36     -395s
          Metop-B     12:45:53 - 12:57:48  
          Metop-A     13:30:53 - 13:36:15  
          NPP         14:33:46 - 14:38:48  
          NPP         16:10:23 - 16:24:14  
          NPP         17:51:40 - 18:01:02 *    -69s
          NOAA-19     18:02:32 - 18:15:19  
          NOAA-19     19:42:59 - 19:56:12  
          NOAA-18     22:23:23 - 22:37:23