Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 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)
 10/01/2020   10:27:27   (   0.04,-137.19) (  -0.37,-135.27)  218.89                80
 10/02/2020   22:46:43   (  -0.03,-137.19) (  -0.78,-140.58)  386.28                80
 10/03/2020   22:30:37   (  -0.04,-137.19) (   0.21,-136.05)  129.96                80
 10/05/2020   10:49:45   (   0.03,-137.19) (   0.97,-141.32)  471.03                80
 10/06/2020   10:33:40   (   0.04,-137.18) (  -0.07,-136.79)   44.68                80
 10/08/2020   22:34:10   (  -0.03,-137.15) (  -0.15,-137.56)   47.07                80
 10/09/2020   22:18:06   (  -0.03,-137.14) (   0.90,-133.03)  467.91                80
 10/11/2020   10:37:13   (   0.02,-137.12) (   0.29,-138.30)  135.12                80
 10/12/2020   10:21:07   (   0.02,-137.10) (  -0.70,-133.77)  379.33                80
 10/13/2020   22:40:24   (  -0.01,-137.07) (  -0.44,-139.08)  229.01                80
 10/14/2020   22:24:18   (  -0.01,-137.05) (   0.55,-134.55)  285.27                80