Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 6 30.  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, -50.47)    1.69                67
 07/09/2018   01:11:50   (  80.50, 116.76) 07/09/2018   01:12:41  (  80.52, 116.89)    2.72                51
 07/09/2018   02:02:50   ( -80.51, -75.89) 07/09/2018   02:03:26  ( -80.52, -75.89)    1.53                36
 07/09/2018   02:53:50   (  80.52,  91.65) 07/09/2018   02:54:11  (  80.52,  91.48)    3.22                21
 07/09/2018   03:44:51   ( -80.51,-101.35) 07/09/2018   03:44:56  ( -80.53,-101.30)    1.84                 5
 07/09/2018   04:35:51   (  80.53,  66.20) 07/09/2018   04:35:41  (  80.52,  66.07)    2.47                10
 07/09/2018   05:26:52   ( -80.51,-126.81) 07/09/2018   05:26:26  ( -80.53,-126.71)    2.44                26
 07/09/2018   06:17:52   (  80.53,  40.74) 07/09/2018   06:17:11  (  80.52,  40.65)    1.73                41
 07/09/2018   07:08:53   ( -80.51,-152.27) 07/09/2018   07:07:56  ( -80.53,-152.13)    3.17                57