Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 6 28.  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)
 07/03/2017   13:59:16   (  80.75, -82.21) 07/03/2017   14:00:24  (  80.79, -79.28)   52.38                68
 07/03/2017   14:50:07   ( -80.82,  87.29) 07/03/2017   14:51:11  ( -80.83,  87.25)    1.72                64
 07/03/2017   15:41:11   (  80.82,-105.33) 07/03/2017   15:41:56  (  80.83,-105.41)    1.68                45
 07/03/2017   16:32:08   ( -80.82,  61.99) 07/03/2017   16:32:41  ( -80.83,  61.84)    2.90                33
 07/03/2017   17:23:12   (  80.83,-130.62) 07/03/2017   17:23:25  (  80.81,-130.47)    3.16                13
 07/03/2017   18:14:09   ( -80.83,  36.69) 07/03/2017   18:14:10  ( -80.82,  36.78)    2.01                 1
 07/03/2017   19:05:14   (  80.82,-156.28) 07/03/2017   19:04:56  (  80.83,-156.24)    1.56                18
 07/03/2017   19:56:11   ( -80.82,  11.02) 07/03/2017   19:55:41  ( -80.84,  11.01)    1.57                30
 07/03/2017   20:47:15   (  80.83, 178.42) 07/03/2017   20:46:26  (  80.84, 178.35)    1.59                49