Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 7 6.  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, -50.44) 07/09/2018   00:21:56  ( -80.52, -50.49)    1.95                67
 07/09/2018   01:11:50   (  80.51, 116.79) 07/09/2018   01:12:41  (  80.51, 116.92)    2.52                51
 07/09/2018   02:02:50   ( -80.51, -75.90) 07/09/2018   02:03:26  ( -80.52, -75.90)    1.76                36
 07/09/2018   02:53:51   (  80.51,  91.34) 07/09/2018   02:54:11  (  80.52,  91.51)    3.23                20
 07/09/2018   03:44:51   ( -80.51,-101.36) 07/09/2018   03:44:56  ( -80.53,-101.32)    1.99                 5
 07/09/2018   04:35:51   (  80.53,  66.23) 07/09/2018   04:35:41  (  80.52,  66.09)    2.61                10
 07/09/2018   05:26:52   ( -80.51,-126.82) 07/09/2018   05:26:26  ( -80.53,-126.73)    2.52                26
 07/09/2018   06:17:52   (  80.53,  40.78) 07/09/2018   06:17:11  (  80.52,  40.68)    1.88                41
 07/09/2018   07:08:53   ( -80.51,-152.28) 07/09/2018   07:07:56  ( -80.53,-152.14)    3.20                57