Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 8 23.  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)
 08/27/2017   05:00:29   (  80.79,  55.43) 08/27/2017   05:01:40  (  80.78,  55.59)    2.97                71
 08/27/2017   05:51:32   ( -80.78,-137.41) 08/27/2017   05:52:26  ( -80.80,-137.45)    1.83                54
 08/27/2017   06:42:30   (  80.79,  30.11) 08/27/2017   06:43:10  (  80.78,  30.20)    2.08                40
 08/27/2017   07:33:33   ( -80.79,-162.73) 08/27/2017   07:33:56  ( -80.80,-162.84)    2.27                23
 08/27/2017   08:24:32   (  80.79,   4.42) 08/27/2017   08:24:41  (  80.80,   4.46)    1.74                 9
 08/27/2017   09:15:34   ( -80.79, 171.95) 08/27/2017   09:15:26  ( -80.80, 171.77)    3.31                 8
 08/27/2017   10:06:33   (  80.79, -20.90) 08/27/2017   10:06:11  (  80.80, -20.93)    1.22                22
 08/27/2017   10:57:36   ( -80.79, 146.27) 08/27/2017   10:56:56  ( -80.80, 146.38)    2.31                40
 08/27/2017   11:48:34   (  80.80, -46.22) 08/27/2017   11:47:41  (  80.80, -46.32)    1.85                53