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   (  80.35,-153.49) 07/22/2018   19:04:36  (  80.37,-149.18)   80.15                64
 07/22/2018   19:54:21   ( -80.50,  16.49) 07/22/2018   19:55:26  ( -80.50,  16.44)    1.01                65
 07/22/2018   20:45:25   (  80.50,-176.24) 07/22/2018   20:46:11  (  80.50,-176.23)    0.14                46
 07/22/2018   21:36:22   ( -80.50,  -8.97) 07/22/2018   21:36:56  ( -80.50,  -8.97)    0.42                34
 07/22/2018   22:27:26   (  80.50, 158.30) 07/22/2018   22:27:41  (  80.50, 158.35)    0.96                15
 07/22/2018   23:18:23   ( -80.50, -34.43) 07/22/2018   23:18:26  ( -80.51, -34.39)    1.01                 3
 07/23/2018   00:09:27   (  80.50, 132.84) 07/23/2018   00:09:11  (  80.51, 132.94)    1.79                16
 07/23/2018   01:00:24   ( -80.50, -59.90) 07/23/2018   00:59:56  ( -80.51, -59.80)    1.88                28
 07/23/2018   01:51:28   (  80.51, 107.38) 07/23/2018   01:50:41  (  80.51, 107.52)    2.61                47
 07/23/2018   02:42:25   ( -80.50, -85.36) 07/23/2018   02:41:26  ( -80.51, -85.21)    2.78                59