Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 7 1.  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, -50.41) 07/09/2018   00:21:56  ( -80.52, -50.43)    1.10                67
 07/09/2018   01:11:50   (  80.51, 116.79) 07/09/2018   01:12:41  (  80.51, 116.94)    2.96                51
 07/09/2018   02:02:50   ( -80.51, -75.87) 07/09/2018   02:03:26  ( -80.52, -75.84)    1.19                36
 07/09/2018   02:53:50   (  80.52,  91.68) 07/09/2018   02:54:11  (  80.52,  91.53)    2.88                21
 07/09/2018   03:44:51   ( -80.51,-101.33) 07/09/2018   03:44:56  ( -80.52,-101.26)    1.79                 5
 07/09/2018   04:35:51   (  80.53,  66.22) 07/09/2018   04:35:41  (  80.52,  66.12)    2.15                10
 07/09/2018   05:26:52   ( -80.51,-126.79) 07/09/2018   05:26:26  ( -80.52,-126.67)    2.56                26
 07/09/2018   06:17:52   (  80.53,  40.77) 07/09/2018   06:17:11  (  80.52,  40.70)    1.47                41
 07/09/2018   07:08:52   ( -80.53,-151.91) 07/09/2018   07:07:56  ( -80.53,-152.08)    3.24                56