Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 7 9.  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   19:03:33   (  80.33,-153.90) 07/22/2018   19:04:35  (  80.35,-148.83)   94.53                62
 07/22/2018   19:54:21   ( -80.50,  16.45) 07/22/2018   19:55:26  ( -80.50,  16.51)    1.11                65
 07/22/2018   20:45:25   (  80.50,-176.32) 07/22/2018   20:46:11  (  80.50,-176.20)    2.19                46
 07/22/2018   21:36:22   ( -80.50,  -9.02) 07/22/2018   21:36:56  ( -80.50,  -8.90)    2.06                34
 07/22/2018   22:27:26   (  80.50, 158.22) 07/22/2018   22:27:41  (  80.50, 158.38)    3.05                15
 07/22/2018   23:18:23   ( -80.50, -34.48) 07/22/2018   23:18:26  ( -80.50, -34.32)    3.00                 3
 07/23/2018   00:09:26   (  80.52, 133.10) 07/23/2018   00:09:11  (  80.50, 132.97)    2.84                15
 07/23/2018   01:00:23   ( -80.52, -59.60) 07/23/2018   00:59:56  ( -80.50, -59.73)    2.84                27
 07/23/2018   01:51:27   (  80.52, 107.64) 07/23/2018   01:50:41  (  80.51, 107.55)    2.09                46
 07/23/2018   02:42:24   ( -80.52, -85.07) 07/23/2018   02:41:26  ( -80.51, -85.14)    2.04                58