Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 22.  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) (   0.92,-141.30)  465.47                80
 11/23/2020   10:33:14   (   0.01,-137.23) (  -0.08,-136.77)   52.06                80
 11/25/2020   22:33:44   (  -0.01,-137.24) (  -0.10,-137.54)   35.11                80
 11/26/2020   22:17:39   (  -0.01,-137.24) (   0.97,-133.02)  482.20                80
 11/28/2020   10:36:46   (   0.01,-137.25) (   0.23,-138.28)  116.56                80
 11/29/2020   10:20:40   (   0.01,-137.25) (  -0.78,-133.75)  400.17                80
 11/30/2020   22:39:55   (  -0.01,-137.24) (  -0.40,-139.05)  205.64                80
 12/01/2020   22:23:50   (  -0.01,-137.24) (   0.61,-134.51)  310.53                80
 12/03/2020   10:42:56   (   0.01,-137.23) (   0.58,-139.78)  289.82                80
 12/04/2020   10:26:51   (   0.01,-137.23) (  -0.44,-135.24)  225.82                80
 12/05/2020   22:46:06   (  -0.01,-137.20) (  -0.74,-140.55)  381.44                80