Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 7 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2020   10:30:27   (   0.02,-137.20) (  -0.10,-136.73)   53.75                80
 07/04/2020   22:33:40   (   0.00,-137.18) (  -0.04,-137.51)   36.89                80
 07/05/2020   22:17:36   (   0.01,-137.18) (   0.94,-132.98)  478.65                80
 07/07/2020   10:39:25   (  -0.01,-137.17) (   0.21,-138.26)  122.85                80
 07/08/2020   10:18:01   (  -0.01,-137.16) (  -0.78,-133.72)  392.52                80
 07/09/2020   22:39:58   (   0.01,-137.15) (  -0.41,-139.03)  213.95                80
 07/10/2020   22:23:54   (   0.01,-137.14) (   0.58,-134.49)  301.41                80
 07/12/2020   10:45:43   (  -0.00,-137.13) (   0.57,-139.77)  300.35                80
 07/13/2020   10:24:18   (  -0.01,-137.12) (  -0.42,-135.23)  214.50                80
 07/14/2020   22:46:16   (   0.01,-137.09) (  -0.76,-140.54)  393.18                80