Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 9 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)
 09/23/2017   13:21:58   (  80.68, -72.07) 09/23/2017   13:23:04  (  80.70, -68.43)   65.54                66
 09/23/2017   14:12:57   ( -80.77,  97.79) 09/23/2017   14:13:52  ( -80.77,  97.71)    1.54                55
 09/23/2017   15:03:52   (  80.77, -94.89) 09/23/2017   15:04:37  (  80.76, -94.87)    1.13                45
 09/23/2017   15:54:58   ( -80.77,  72.46) 09/23/2017   15:55:22  ( -80.77,  72.31)    2.70                24
 09/23/2017   16:45:53   (  80.78,-120.23) 09/23/2017   16:46:07  (  80.76,-120.27)    1.67                14
 09/23/2017   17:37:00   ( -80.77,  46.76) 09/23/2017   17:36:52  ( -80.77,  46.92)    2.75                 8
 09/23/2017   18:27:55   (  80.77,-145.92) 09/23/2017   18:27:38  (  80.78,-146.01)    2.16                17
 09/23/2017   19:19:01   ( -80.77,  21.43) 09/23/2017   19:18:22  ( -80.77,  21.52)    1.69                39
 09/23/2017   20:09:56   (  80.78,-171.25) 09/23/2017   20:09:08  (  80.78,-171.41)    2.89                48