Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/22/2020   10:49:19   (   0.01,-137.22) (   0.93,-141.30)  465.49                80
 11/23/2020   10:33:14   (   0.01,-137.23) (  -0.08,-136.77)   51.98                80
 11/25/2020   22:33:45   (  -0.01,-137.23) (  -0.05,-137.55)   35.38                80
 11/26/2020   22:17:39   (  -0.01,-137.24) (   0.96,-133.01)  481.89                80
 11/28/2020   10:36:46   (   0.01,-137.25) (   0.23,-138.28)  116.94                80
 11/29/2020   10:20:40   (   0.01,-137.25) (  -0.77,-133.74)  399.71                80
 11/30/2020   22:39:55   (  -0.01,-137.24) (  -0.41,-139.05)  206.19                80
 12/01/2020   22:23:50   (  -0.01,-137.23) (   0.60,-134.51)  309.88                80
 12/03/2020   10:42:56   (   0.01,-137.23) (   0.59,-139.78)  290.58                80
 12/04/2020   10:26:51   (   0.01,-137.22) (  -0.42,-135.24)  224.96                80