Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2016 9 18.  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)
 09/22/2016   03:25:37   ( -80.96,-104.09) 09/22/2016   03:26:52  ( -80.97,-104.11)    0.61                75
 09/22/2016   04:16:34   (  80.97,  63.40) 09/22/2016   04:17:37  (  80.96,  63.33)    1.23                63
 09/22/2016   05:07:39   ( -80.96,-129.63) 09/22/2016   05:08:22  ( -80.97,-129.49)    2.38                43
 09/22/2016   05:58:36   (  80.97,  37.87) 09/22/2016   05:59:07  (  80.96,  37.95)    1.41                31
 09/22/2016   06:49:40   ( -80.97,-154.78) 09/22/2016   06:49:52  ( -80.97,-154.88)    1.65                12
 09/22/2016   07:40:37   (  80.97,  12.71) 09/22/2016   07:40:37  (  80.96,  12.56)    2.79                 0
 09/22/2016   08:31:42   ( -80.97, 179.68) 09/22/2016   08:31:22  ( -80.97, 179.74)    1.00                20
 09/22/2016   09:22:39   (  80.97, -12.81) 09/22/2016   09:22:07  (  80.96, -12.82)    0.73                32
 09/22/2016   10:13:43   ( -80.97, 154.52) 09/22/2016   10:12:52  ( -80.97, 154.35)    2.97                51