Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 2 24.  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)
 03/06/2018   22:13:41   (  80.63, 159.70) 03/06/2018   22:14:47  (  80.63, 159.82)    2.40                66
 03/06/2018   23:04:40   ( -80.64, -32.94) 03/06/2018   23:05:32  ( -80.63, -32.93)    0.74                52
 03/06/2018   23:55:42   (  80.64, 134.29) 03/06/2018   23:56:17  (  80.63, 134.39)    2.00                35
 03/07/2018   00:46:41   ( -80.64, -58.35) 03/07/2018   00:47:02  ( -80.64, -58.36)    0.80                21
 03/07/2018   01:37:43   (  80.64, 108.89) 03/07/2018   01:37:47  (  80.63, 108.96)    1.61                 4
 03/07/2018   02:28:42   ( -80.65, -83.76) 03/07/2018   02:28:32  ( -80.64, -83.79)    0.96                10
 03/07/2018   03:19:44   (  80.65,  83.48) 03/07/2018   03:19:17  (  80.64,  83.53)    1.27                27
 03/07/2018   04:10:43   ( -80.65,-109.17) 03/07/2018   04:10:02  ( -80.64,-109.22)    1.19                41
 03/07/2018   05:01:45   (  80.65,  58.08) 03/07/2018   05:00:47  (  80.64,  58.11)    0.99                58