Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 2 7.  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,-125.09) 02/21/2018   05:13:40  ( -80.65,-125.22)    2.40                61
 02/21/2018   06:03:37   (  80.66,  42.28) 02/21/2018   06:04:25  (  80.65,  42.13)    3.02                48
 02/21/2018   06:54:40   ( -80.66,-150.49) 02/21/2018   06:55:10  ( -80.65,-150.65)    2.81                30
 02/21/2018   07:45:39   (  80.65,  16.53) 02/21/2018   07:45:55  (  80.65,  16.70)    3.06                16
 02/21/2018   08:36:41   ( -80.66,-175.90) 02/21/2018   08:36:40  ( -80.66,-176.07)    3.22                 1
 02/21/2018   09:27:40   (  80.65,  -8.87) 02/21/2018   09:27:25  (  80.65,  -8.73)    2.53                15
 02/21/2018   10:18:43   ( -80.65, 158.34) 02/21/2018   10:18:10  ( -80.66, 158.50)    2.99                33
 02/21/2018   11:09:41   (  80.66, -34.27) 02/21/2018   11:08:55  (  80.66, -34.16)    2.00                46
 02/21/2018   12:00:44   ( -80.65, 132.94) 02/21/2018   11:59:40  ( -80.66, 133.07)    2.60                64