Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 9 13.  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   13:21:59   (  80.67, -72.42) 09/23/2017   13:23:04  (  80.70, -68.40)   72.53                65
 09/23/2017   14:12:57   ( -80.77,  97.86) 09/23/2017   14:13:52  ( -80.76,  97.81)    1.47                55
 09/23/2017   15:03:52   (  80.77, -94.89) 09/23/2017   15:04:37  (  80.76, -94.84)    1.64                45
 09/23/2017   15:54:59   ( -80.77,  72.16) 09/23/2017   15:55:23  ( -80.78,  72.06)    2.56                24
 09/23/2017   16:45:54   (  80.77,-120.58) 09/23/2017   16:46:08  (  80.78,-120.58)    1.63                14
 09/23/2017   17:37:00   ( -80.77,  46.83) 09/23/2017   17:36:53  ( -80.78,  46.67)    3.17                 7
 09/23/2017   18:27:55   (  80.77,-145.92) 09/23/2017   18:27:38  (  80.78,-145.98)    1.57                17
 09/23/2017   19:19:01   ( -80.78,  21.49) 09/23/2017   19:18:22  ( -80.77,  21.62)    2.60                39
 09/23/2017   20:09:56   (  80.78,-171.25) 09/23/2017   20:09:08  (  80.78,-171.37)    2.27                48