Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 6 28.  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, -50.36) 07/09/2018   00:21:56  ( -80.52, -50.47)    2.29                67
 07/09/2018   01:11:50   (  80.51, 116.82) 07/09/2018   01:12:41  (  80.52, 116.88)    1.51                51
 07/09/2018   02:02:50   ( -80.51, -75.82) 07/09/2018   02:03:26  ( -80.52, -75.88)    1.61                36
 07/09/2018   02:53:51   (  80.51,  91.37) 07/09/2018   02:54:11  (  80.52,  91.47)    2.13                20
 07/09/2018   03:44:51   ( -80.51,-101.28) 07/09/2018   03:44:56  ( -80.52,-101.29)    1.18                 5
 07/09/2018   04:35:52   (  80.51,  65.92) 07/09/2018   04:35:41  (  80.52,  66.06)    2.80                11
 07/09/2018   05:26:52   ( -80.52,-126.73) 07/09/2018   05:26:26  ( -80.53,-126.71)    1.30                26
 07/09/2018   06:17:52   (  80.53,  40.81) 07/09/2018   06:17:11  (  80.52,  40.65)    3.08                41
 07/09/2018   07:08:53   ( -80.52,-152.19) 07/09/2018   07:07:56  ( -80.53,-152.12)    1.86                57