Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 12 11.  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)
 12/14/2017   16:06:45   (  80.71,-109.46) 12/14/2017   16:07:50  (  80.70,-109.45)    0.87                65
 12/14/2017   16:57:43   ( -80.71,  57.78) 12/14/2017   16:58:35  ( -80.70,  57.85)    1.52                52
 12/14/2017   17:48:46   (  80.72,-134.83) 12/14/2017   17:49:20  (  80.71,-134.87)    1.30                34
 12/14/2017   18:39:44   ( -80.72,  32.41) 12/14/2017   18:40:05  ( -80.71,  32.44)    1.06                21
 12/14/2017   19:30:47   (  80.72,-160.21) 12/14/2017   19:30:50  (  80.71,-160.29)    2.01                 3
 12/14/2017   20:21:45   ( -80.72,   7.04) 12/14/2017   20:21:35  ( -80.71,   7.02)    1.26                10
 12/14/2017   21:12:48   (  80.73, 174.42) 12/14/2017   21:12:20  (  80.71, 174.29)    2.79                28
 12/14/2017   22:03:46   ( -80.72, -18.33) 12/14/2017   22:03:05  ( -80.71, -18.40)    1.93                41
 12/14/2017   22:54:50   (  80.72, 148.69) 12/14/2017   22:53:50  (  80.72, 148.87)    3.27                60