Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 2 22.  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   22:13:40   (  80.64, 159.83) 03/06/2018   22:14:46  (  80.62, 159.89)    2.06                66
 03/06/2018   23:04:39   ( -80.64, -32.79) 03/06/2018   23:05:31  ( -80.63, -32.86)    2.22                52
 03/06/2018   23:55:41   (  80.64, 134.42) 03/06/2018   23:56:16  (  80.63, 134.46)    1.89                35
 03/07/2018   00:46:41   ( -80.63, -58.56) 03/07/2018   00:47:02  ( -80.65, -58.63)    2.39                21
 03/07/2018   01:37:42   (  80.65, 109.02) 03/07/2018   01:37:46  (  80.63, 109.03)    1.81                 4
 03/07/2018   02:28:42   ( -80.64, -83.97) 03/07/2018   02:28:32  ( -80.66, -84.06)    2.57                10
 03/07/2018   03:19:43   (  80.65,  83.61) 03/07/2018   03:19:16  (  80.63,  83.59)    1.84                27
 03/07/2018   04:10:43   ( -80.64,-109.38) 03/07/2018   04:10:02  ( -80.66,-109.49)    2.77                41
 03/07/2018   05:01:44   (  80.65,  58.21) 03/07/2018   05:00:46  (  80.64,  58.16)    1.98                58