Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 12 4.  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  (  80.71,-109.52)    1.13                65
 12/14/2017   16:57:43   ( -80.71,  57.82) 12/14/2017   16:58:35  ( -80.71,  57.84)    0.85                52
 12/14/2017   17:48:46   (  80.72,-134.84) 12/14/2017   17:49:20  (  80.71,-134.94)    1.98                34
 12/14/2017   18:39:44   ( -80.72,  32.45) 12/14/2017   18:40:05  ( -80.71,  32.42)    1.16                21
 12/14/2017   19:30:47   (  80.72,-160.21) 12/14/2017   19:30:50  (  80.71,-160.36)    2.84                 3
 12/14/2017   20:21:45   ( -80.72,   7.08) 12/14/2017   20:21:35  ( -80.71,   7.00)    1.93                10
 12/14/2017   21:12:49   (  80.71, 174.06) 12/14/2017   21:12:20  (  80.72, 174.22)    2.93                29
 12/14/2017   22:03:46   ( -80.73, -18.29) 12/14/2017   22:03:05  ( -80.71, -18.42)    2.80                41
 12/14/2017   22:54:50   (  80.72, 148.69) 12/14/2017   22:53:50  (  80.72, 148.80)    2.08                60