Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 3 21.  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)
 03/30/2017   09:26:28   ( -80.87, 167.40) 03/30/2017   09:27:34  ( -80.87, 167.44)    0.68                66
 03/30/2017   10:17:32   (  80.88, -25.27) 03/30/2017   10:18:19  (  80.88, -25.38)    1.88                47
 03/30/2017   11:08:29   ( -80.88, 142.15) 03/30/2017   11:09:04  ( -80.88, 142.01)    2.54                35
 03/30/2017   11:59:34   (  80.87, -50.90) 03/30/2017   11:59:49  (  80.88, -50.81)    1.86                15
 03/30/2017   12:50:31   ( -80.88, 116.53) 03/30/2017   12:50:34  ( -80.88, 116.58)    0.84                 3
 03/30/2017   13:41:35   (  80.88, -76.16) 03/30/2017   13:41:19  (  80.88, -76.24)    1.69                16
 03/30/2017   14:32:32   ( -80.88,  91.28) 03/30/2017   14:32:04  ( -80.88,  91.15)    2.34                28
 03/30/2017   15:23:36   (  80.88,-101.41) 03/30/2017   15:22:48  (  80.87,-101.32)    2.28                48