Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 2 8.  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)
 02/21/2018   05:12:39   ( -80.65,-125.05) 02/21/2018   05:13:40  ( -80.65,-125.21)    2.93                61
 02/21/2018   06:03:38   (  80.65,  41.97) 02/21/2018   06:04:25  (  80.65,  42.14)    3.06                47
 02/21/2018   06:54:41   ( -80.64,-150.81) 02/21/2018   06:55:10  ( -80.65,-150.64)    3.25                29
 02/21/2018   07:45:39   (  80.65,  16.57) 02/21/2018   07:45:55  (  80.65,  16.71)    2.53                16
 02/21/2018   08:36:42   ( -80.65,-176.22) 02/21/2018   08:36:40  ( -80.66,-176.07)    2.85                 2
 02/21/2018   09:27:40   (  80.65,  -8.83) 02/21/2018   09:27:25  (  80.65,  -8.72)    2.00                15
 02/21/2018   10:18:43   ( -80.65, 158.38) 02/21/2018   10:18:10  ( -80.66, 158.51)    2.44                33
 02/21/2018   11:09:41   (  80.66, -34.23) 02/21/2018   11:08:55  (  80.66, -34.15)    1.47                46
 02/21/2018   12:00:44   ( -80.66, 132.97) 02/21/2018   11:59:40  ( -80.66, 133.08)    2.04                64