Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 8 15.  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,  55.32) 08/27/2017   05:01:41  (  80.79,  55.45)    2.34                71
 08/27/2017   05:51:32   ( -80.79,-137.10) 08/27/2017   05:52:26  ( -80.78,-137.18)    1.74                54
 08/27/2017   06:42:31   (  80.79,  30.00) 08/27/2017   06:43:11  (  80.79,  30.06)    1.10                40
 08/27/2017   07:33:34   ( -80.79,-162.78) 08/27/2017   07:33:57  ( -80.80,-162.92)    2.99                23
 08/27/2017   08:24:32   (  80.79,   4.68) 08/27/2017   08:24:41  (  80.79,   4.67)    0.66                 9
 08/27/2017   09:15:35   ( -80.79, 171.90) 08/27/2017   09:15:26  ( -80.78, 172.04)    2.66                 9
 08/27/2017   10:06:33   (  80.80, -20.65) 08/27/2017   10:06:11  (  80.79, -20.72)    1.77                22
 08/27/2017   10:57:36   ( -80.80, 146.59) 08/27/2017   10:56:56  ( -80.79, 146.65)    1.88                40
 08/27/2017   11:48:34   (  80.79, -46.33) 08/27/2017   11:47:41  (  80.81, -46.46)    2.89                53