Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2018 8 12.  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)
 08/19/2018   12:43:19   ( -80.47, 124.78) 08/19/2018   12:44:27  ( -80.46, 124.75)    1.53                68
 08/19/2018   13:34:24   (  80.47, -68.09) 08/19/2018   13:35:12  (  80.46, -67.98)    2.10                48
 08/19/2018   14:25:20   ( -80.47,  99.31) 08/19/2018   14:25:57  ( -80.46,  99.36)    1.65                37
 08/19/2018   15:16:25   (  80.47, -93.56) 08/19/2018   15:16:43  (  80.49, -93.70)    3.34                18
 08/19/2018   16:07:21   ( -80.48,  73.84) 08/19/2018   16:07:27  ( -80.46,  73.97)    2.69                 6
 08/19/2018   16:58:26   (  80.47,-119.04) 08/19/2018   16:58:13  (  80.49,-119.09)    2.41                13
 08/19/2018   17:49:22   ( -80.48,  48.37) 08/19/2018   17:48:58  ( -80.49,  48.25)    2.61                24
 08/19/2018   18:40:27   (  80.47,-144.51) 08/19/2018   18:39:43  (  80.49,-144.49)    2.22                44
 08/19/2018   19:31:23   ( -80.48,  22.90) 08/19/2018   19:30:28  ( -80.49,  22.85)    1.44                55