Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 8 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)
 08/27/2017   05:00:30   (  80.78,  55.28) 08/27/2017   05:01:41  (  80.79,  55.42)    2.53                71
 08/27/2017   05:51:32   ( -80.79,-137.18) 08/27/2017   05:52:26  ( -80.79,-137.25)    1.37                54
 08/27/2017   06:42:31   (  80.79,  29.96) 08/27/2017   06:43:11  (  80.79,  30.03)    1.22                40
 08/27/2017   07:33:33   ( -80.80,-162.50) 08/27/2017   07:33:56  ( -80.79,-162.64)    2.77                23
 08/27/2017   08:24:32   (  80.79,   4.64) 08/27/2017   08:24:41  (  80.79,   4.64)    0.24                 9
 08/27/2017   09:15:35   ( -80.79, 171.83) 08/27/2017   09:15:26  ( -80.79, 171.97)    2.50                 9
 08/27/2017   10:06:33   (  80.80, -20.68) 08/27/2017   10:06:11  (  80.79, -20.75)    1.46                22
 08/27/2017   10:57:36   ( -80.80, 146.51) 08/27/2017   10:56:56  ( -80.79, 146.58)    1.37                40
 08/27/2017   11:48:34   (  80.80, -46.00) 08/27/2017   11:47:41  (  80.79, -46.14)    2.77                53