Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 6 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/05/2019   22:40:23   (   0.02,-137.19) (  -0.39,-139.13)  220.58                80
 06/06/2019   22:24:18   (  -0.00,-137.19) (   0.61,-134.60)  296.05                80
 06/08/2019   10:46:07   (   0.01,-137.21) (   0.58,-139.86)  302.44                80
 06/09/2019   10:24:42   (   0.02,-137.20) (  -0.42,-135.33)  213.46                80
 06/10/2019   22:46:38   (  -0.02,-137.17) (  -0.80,-140.63)  394.71                80
 06/11/2019   22:30:34   (  -0.02,-137.16) (   0.20,-136.10)  121.07                80
 06/13/2019   10:52:23   (   0.02,-137.18) (   0.93,-141.38)  478.12                80
 06/14/2019   10:30:59   (   0.02,-137.17) (  -0.07,-136.84)   37.08                80
 06/16/2019   22:34:11   (  -0.01,-137.11) (  -0.14,-137.61)   57.72                80
 06/17/2019   22:18:07   (  -0.01,-137.10) (   0.92,-133.09)  457.24                80
 06/19/2019   10:37:15   (   0.01,-137.10) (   0.27,-138.36)  143.10                80