Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 8 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/04/2019   22:18:20   (   0.03,-137.20) (   0.93,-133.10)  467.23                80
 08/06/2019   10:37:28   (  -0.04,-137.20) (   0.21,-138.37)  132.94                80
 08/07/2019   10:21:24   (  -0.04,-137.20) (  -0.80,-133.84)  383.03                80
 08/08/2019   22:40:40   (   0.04,-137.18) (  -0.41,-139.14)  223.38                80
 08/09/2019   22:24:36   (   0.04,-137.18) (   0.60,-134.61)  292.23                80
 08/11/2019   10:43:44   (  -0.05,-137.17) (   0.54,-139.88)  309.06                80
 08/12/2019   10:27:39   (  -0.05,-137.16) (  -0.47,-135.35)  206.16                80
 08/13/2019   22:46:56   (   0.06,-137.13) (  -0.74,-140.65)  401.35                80
 08/14/2019   22:30:51   (   0.06,-137.12) (   0.28,-136.12)  113.71                80
 08/16/2019   10:50:00   (  -0.07,-137.11) (   0.87,-141.39)  488.21                80
 08/17/2019   10:33:54   (  -0.07,-137.09) (  -0.09,-136.85)   26.80                80