Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 7 16.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-19) NOAA-19 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/22/2018   19:03:32   (  80.34,-153.67) 07/22/2018   19:04:35  (  80.36,-149.01)   86.89                63
 07/22/2018   19:54:20   ( -80.50,  16.64) 07/22/2018   19:55:25  ( -80.49,  16.62)    1.96                65
 07/22/2018   20:45:24   (  80.51,-176.08) 07/22/2018   20:46:10  (  80.49,-176.05)    2.33                46
 07/22/2018   21:36:21   ( -80.51,  -8.82) 07/22/2018   21:36:55  ( -80.49,  -8.80)    1.83                34
 07/22/2018   22:27:25   (  80.51, 158.46) 07/22/2018   22:27:40  (  80.49, 158.54)    2.58                15
 07/22/2018   23:18:22   ( -80.51, -34.28) 07/22/2018   23:18:25  ( -80.49, -34.21)    2.14                 3
 07/23/2018   00:09:26   (  80.51, 133.00) 07/23/2018   00:09:10  (  80.49, 133.12)    3.05                16
 07/23/2018   01:00:23   ( -80.51, -59.75) 07/23/2018   00:59:55  ( -80.50, -59.62)    2.75                28
 07/23/2018   01:51:27   (  80.51, 107.54) 07/23/2018   01:50:41  (  80.52, 107.37)    3.07                46
 07/23/2018   02:42:24   ( -80.51, -85.21) 07/23/2018   02:41:26  ( -80.52, -85.37)    3.10                58