Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 8 22.  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,  55.33) 08/27/2017   05:01:41  (  80.78,  55.49)    2.99                71
 08/27/2017   05:51:32   ( -80.79,-137.15) 08/27/2017   05:52:26  ( -80.78,-137.19)    1.06                54
 08/27/2017   06:42:31   (  80.79,  30.00) 08/27/2017   06:43:11  (  80.78,  30.10)    1.81                40
 08/27/2017   07:33:33   ( -80.80,-162.46) 08/27/2017   07:33:56  ( -80.78,-162.58)    2.39                23
 08/27/2017   08:24:32   (  80.79,   4.68) 08/27/2017   08:24:41  (  80.79,   4.71)    1.01                 9
 08/27/2017   09:15:35   ( -80.79, 171.86) 08/27/2017   09:15:26  ( -80.79, 172.03)    3.20                 9
 08/27/2017   10:06:32   (  80.80, -20.64) 08/27/2017   10:06:10  (  80.79, -20.68)    1.48                22
 08/27/2017   10:57:35   ( -80.80, 146.54) 08/27/2017   10:56:55  ( -80.79, 146.64)    2.17                40
 08/27/2017   11:48:34   (  80.79, -46.33) 08/27/2017   11:47:41  (  80.81, -46.42)    2.21                53