Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 9 13.  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)
 09/16/2018   05:32:11   ( -80.43,-127.17) 09/16/2018   05:33:20  ( -80.44,-127.20)    1.20                69
 09/16/2018   06:23:09   (  80.43,  40.16) 09/16/2018   06:24:05  (  80.44,  40.14)    0.58                56
 09/16/2018   07:14:12   ( -80.43,-152.65) 09/16/2018   07:14:50  ( -80.44,-152.60)    1.50                38
 09/16/2018   08:05:10   (  80.44,  14.68) 09/16/2018   08:05:35  (  80.44,  14.74)    1.31                25
 09/16/2018   08:56:13   ( -80.43,-178.13) 09/16/2018   08:56:20  ( -80.44,-177.99)    2.78                 7
 09/16/2018   09:47:11   (  80.44, -10.81) 09/16/2018   09:47:05  (  80.44, -10.65)    2.91                 6
 09/16/2018   10:38:13   ( -80.45, 156.73) 09/16/2018   10:37:50  ( -80.45, 156.61)    2.32                23
 09/16/2018   11:29:11   (  80.46, -35.95) 09/16/2018   11:28:35  (  80.44, -36.05)    2.26                36
 09/16/2018   12:20:14   ( -80.45, 131.25) 09/16/2018   12:19:20  ( -80.45, 131.22)    0.99                54