Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 6 9.  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)
 06/11/2018   09:13:42   ( -80.44, 174.16) 06/11/2018   09:14:50  ( -80.46, 177.09)   53.96                68
 06/11/2018   10:04:32   (  80.53, -16.79) 06/11/2018   10:05:39  (  80.55, -16.79)    1.48                67
 06/11/2018   10:55:37   ( -80.55, 150.77) 06/11/2018   10:56:23  ( -80.53, 150.69)    2.15                46
 06/11/2018   11:46:33   (  80.54, -42.23) 06/11/2018   11:47:09  (  80.55, -42.20)    1.58                36
 06/11/2018   12:37:38   ( -80.55, 125.33) 06/11/2018   12:37:53  ( -80.54, 125.28)    1.75                15
 06/11/2018   13:28:34   (  80.54, -67.68) 06/11/2018   13:28:39  (  80.55, -67.61)    1.92                 5
 06/11/2018   14:19:39   ( -80.55,  99.88) 06/11/2018   14:19:23  ( -80.54,  99.87)    1.56                16
 06/11/2018   15:10:35   (  80.54, -93.13) 06/11/2018   15:10:09  (  80.55, -93.02)    2.39                26
 06/11/2018   16:01:40   ( -80.56,  74.43) 06/11/2018   16:00:53  ( -80.54,  74.46)    1.68                47
 06/11/2018   16:52:36   (  80.54,-118.57) 06/11/2018   16:51:39  (  80.56,-118.43)    2.94                57