Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP
TLE Epoch: 2017 6 21.  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   13:59:14   (  80.77, -81.44) 07/03/2017   14:00:26  (  80.83, -80.03)   25.78                72
 07/03/2017   14:50:07   ( -80.82,  87.38) 07/03/2017   14:51:11  ( -80.83,  87.26)    2.44                64
 07/03/2017   15:41:11   (  80.82,-105.28) 07/03/2017   15:41:56  (  80.83,-105.45)    3.15                45
 07/03/2017   16:32:08   ( -80.82,  62.08) 07/03/2017   16:32:40  ( -80.81,  62.20)    2.43                32
 07/03/2017   17:23:12   (  80.83,-130.57) 07/03/2017   17:23:25  (  80.81,-130.51)    1.86                13
 07/03/2017   18:14:10   ( -80.82,  36.42) 07/03/2017   18:14:11  ( -80.83,  36.43)    1.53                 1
 07/03/2017   19:05:14   (  80.82,-156.23) 07/03/2017   19:04:56  (  80.84,-156.28)    1.55                18
 07/03/2017   19:56:11   ( -80.83,  11.12) 07/03/2017   19:55:41  ( -80.84,  11.02)    2.15                30
 07/03/2017   20:47:15   (  80.83, 178.48) 07/03/2017   20:46:26  (  80.84, 178.31)    3.10                49