Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 3 14.  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)
 03/16/2017   19:48:14   (  80.88,-168.11) 03/16/2017   19:49:26  (  80.88,-168.21)    1.67                72
 03/16/2017   20:39:10   ( -80.88,  -0.98) 03/16/2017   20:40:11  ( -80.88,  -0.91)    1.27                61
 03/16/2017   21:30:16   (  80.88, 166.27) 03/16/2017   21:30:56  (  80.88, 166.36)    1.75                40
 03/16/2017   22:21:11   ( -80.88, -26.22) 03/16/2017   22:21:41  ( -80.89, -26.34)    2.06                30
 03/16/2017   23:12:17   (  80.88, 141.02) 03/16/2017   23:12:26  (  80.89, 140.93)    1.66                 9
 03/17/2017   00:03:13   ( -80.88, -51.84) 03/17/2017   00:03:11  ( -80.89, -51.77)    1.44                 2
 03/17/2017   00:54:19   (  80.88, 115.41) 03/17/2017   00:53:56  (  80.89, 115.50)    1.92                23
 03/17/2017   01:45:14   ( -80.89, -77.09) 03/17/2017   01:44:41  ( -80.89, -77.20)    2.06                33
 03/17/2017   02:36:20   (  80.89,  90.16) 03/17/2017   02:35:26  (  80.89,  90.07)    1.69                54