Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 6 29.  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   ( -80.51, -50.43) 07/09/2018   00:21:56  ( -80.52, -50.51)    2.25                67
 07/09/2018   01:11:50   (  80.50, 116.76) 07/09/2018   01:12:41  (  80.52, 116.85)    2.39                51
 07/09/2018   02:02:50   ( -80.51, -75.89) 07/09/2018   02:03:26  ( -80.52, -75.92)    1.87                36
 07/09/2018   02:53:51   (  80.51,  91.31) 07/09/2018   02:54:11  (  80.52,  91.44)    2.99                20
 07/09/2018   03:44:51   ( -80.51,-101.35) 07/09/2018   03:44:56  ( -80.53,-101.33)    1.85                 5
 07/09/2018   04:35:51   (  80.53,  66.20) 07/09/2018   04:35:41  (  80.52,  66.03)    3.11                10
 07/09/2018   05:26:52   ( -80.51,-126.81) 07/09/2018   05:26:26  ( -80.53,-126.75)    2.21                26
 07/09/2018   06:17:52   (  80.53,  40.74) 07/09/2018   06:17:11  (  80.53,  40.61)    2.38                41
 07/09/2018   07:08:53   ( -80.52,-152.27) 07/09/2018   07:07:56  ( -80.53,-152.16)    2.79                57