Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 6 25.  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)
 07/09/2018   00:20:49   ( -80.52, -50.20) 07/09/2018   00:21:56  ( -80.50, -50.22)    1.91                67
 07/09/2018   01:11:50   (  80.51, 116.97) 07/09/2018   01:12:41  (  80.50, 117.12)    3.19                51
 07/09/2018   02:02:50   ( -80.52, -75.66) 07/09/2018   02:03:26  ( -80.50, -75.63)    1.84                36
 07/09/2018   02:53:51   (  80.52,  91.51) 07/09/2018   02:54:12  (  80.53,  91.37)    2.77                21
 07/09/2018   03:44:51   ( -80.52,-101.12) 07/09/2018   03:44:56  ( -80.51,-101.04)    2.17                 5
 07/09/2018   04:35:52   (  80.52,  66.06) 07/09/2018   04:35:42  (  80.53,  65.96)    2.12                10
 07/09/2018   05:26:52   ( -80.52,-126.58) 07/09/2018   05:26:26  ( -80.51,-126.46)    2.76                26
 07/09/2018   06:17:53   (  80.52,  40.60) 07/09/2018   06:17:12  (  80.53,  40.55)    1.57                41
 07/09/2018   07:08:53   ( -80.53,-152.04) 07/09/2018   07:07:57  ( -80.54,-152.20)    3.13                56