20180615
  day     Metop-A   * 22:40:09 - 22:44:44     -150s
          Metop-B     23:35:06 - 23:47:41  
          NOAA-18     00:06:10 - 00:17:57  
          Metop-A   * 00:19:27 - 00:28:53     -265s
          Metop-B     01:15:00 - 01:27:54  
          NPP         01:48:04 - 01:55:02 *    -38s
          Metop-A     01:56:32 - 02:06:08  
          NPP         03:24:11 - 03:38:02  
          NPP         05:06:52 - 05:16:40  
          NOAA-19     05:31:37 - 05:45:01  
          NOAA-19     07:12:45 - 07:25:19  
          NOAA-18     08:11:50 - 08:19:29  
          NOAA-18     09:48:15 - 10:02:21  
          NOAA-18     11:31:11 - 11:41:35  
  night   Metop-A   x 09:57:07 - 10:06:23        0s
          Metop-B     10:54:23 - 11:07:18  
          Metop-A   * 11:43:05 - 11:48:00     -536s
          Metop-B     12:34:38 - 12:47:11  
          Metop-A     13:17:56 - 13:25:40  
          NPP         15:45:32 - 15:58:49  
          NPP         17:26:01 - 17:38:18  
          NOAA-19     17:56:45 - 18:08:59  
          NOAA-19     19:36:47 - 19:50:37  
          NOAA-18     22:13:21 - 22:26:46