Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 9 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)
 09/23/2017   13:21:58   (  80.68, -72.10) 09/23/2017   13:23:04  (  80.70, -68.47)   65.39                66
 09/23/2017   14:12:57   ( -80.77,  97.82) 09/23/2017   14:13:52  ( -80.77,  97.73)    1.64                55
 09/23/2017   15:03:52   (  80.77, -94.92) 09/23/2017   15:04:37  (  80.76, -94.90)    0.86                45
 09/23/2017   15:54:58   ( -80.78,  72.48) 09/23/2017   15:55:22  ( -80.77,  72.33)    2.82                24
 09/23/2017   16:45:53   (  80.78,-120.25) 09/23/2017   16:46:07  (  80.77,-120.30)    1.54                14
 09/23/2017   17:37:00   ( -80.77,  46.79) 09/23/2017   17:36:52  ( -80.77,  46.94)    2.70                 8
 09/23/2017   18:27:55   (  80.77,-145.94) 09/23/2017   18:27:38  (  80.79,-146.04)    2.44                17
 09/23/2017   19:19:01   ( -80.78,  21.45) 09/23/2017   19:18:22  ( -80.77,  21.54)    1.71                39
 09/23/2017   20:09:56   (  80.78,-171.28) 09/23/2017   20:09:08  (  80.79,-171.44)    3.12                48