Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 7 15.  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   (  80.36,-153.36) 07/22/2018   19:04:37  (  80.39,-149.40)   73.80                65
 07/22/2018   19:54:21   ( -80.50,  16.63) 07/22/2018   19:55:26  ( -80.49,  16.56)    1.84                65
 07/22/2018   20:45:25   (  80.51,-176.11) 07/22/2018   20:46:11  (  80.49,-176.12)    1.55                46
 07/22/2018   21:36:21   ( -80.51,  -8.84) 07/22/2018   21:36:55  ( -80.49,  -8.86)    1.28                34
 07/22/2018   22:27:25   (  80.51, 158.43) 07/22/2018   22:27:40  (  80.49, 158.46)    1.59                15
 07/22/2018   23:18:22   ( -80.51, -34.30) 07/22/2018   23:18:25  ( -80.50, -34.27)    1.26                 3
 07/23/2018   00:09:26   (  80.51, 132.97) 07/23/2018   00:09:10  (  80.50, 133.05)    2.00                16
 07/23/2018   01:00:23   ( -80.51, -59.76) 07/23/2018   00:59:55  ( -80.50, -59.68)    1.79                28
 07/23/2018   01:51:27   (  80.51, 107.51) 07/23/2018   01:50:40  (  80.50, 107.63)    2.61                47
 07/23/2018   02:42:24   ( -80.51, -85.23) 07/23/2018   02:41:25  ( -80.50, -85.10)    2.55                59