Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 6 29.  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   (  80.74, -82.42) 07/03/2017   14:00:24  (  80.80, -79.49)   52.57                68
 07/03/2017   14:50:06   ( -80.82,  87.43) 07/03/2017   14:51:10  ( -80.82,  87.39)    0.88                64
 07/03/2017   15:41:10   (  80.82,-105.17) 07/03/2017   15:41:55  (  80.82,-105.26)    1.57                45
 07/03/2017   16:32:07   ( -80.83,  62.13) 07/03/2017   16:32:40  ( -80.83,  61.97)    2.84                33
 07/03/2017   17:23:12   (  80.82,-130.83) 07/03/2017   17:23:25  (  80.82,-130.68)    2.83                13
 07/03/2017   18:14:09   ( -80.82,  36.47) 07/03/2017   18:14:10  ( -80.83,  36.56)    1.75                 1
 07/03/2017   19:05:13   (  80.83,-156.13) 07/03/2017   19:04:55  (  80.83,-156.09)    0.66                18
 07/03/2017   19:56:10   ( -80.83,  11.17) 07/03/2017   19:55:40  ( -80.83,  11.15)    0.56                30
 07/03/2017   20:47:14   (  80.83, 178.58) 07/03/2017   20:46:25  (  80.83, 178.49)    1.53                49