Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 7 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/28/2020   10:45:51   (   0.03,-137.20) (   0.60,-139.78)  293.52                80
 07/29/2020   10:24:27   (   0.02,-137.20) (  -0.39,-135.25)  222.57                80
 07/30/2020   22:46:25   (   0.01,-137.20) (  -0.74,-140.56)  383.81                80
 07/31/2020   22:30:20   (   0.02,-137.19) (   0.26,-136.03)  131.93                80
 08/02/2020   10:52:09   (  -0.01,-137.19) (   0.93,-141.30)  469.03                80
 08/03/2020   10:30:45   (  -0.01,-137.18) (  -0.13,-136.78)   46.70                80
 08/05/2020   22:33:58   (   0.01,-137.16) (  -0.07,-137.55)   44.07                80
 08/06/2020   22:17:54   (   0.01,-137.15) (   0.93,-133.02)  471.44                80
 08/08/2020   10:39:42   (  -0.01,-137.14) (   0.25,-138.29)  130.18                80
 08/09/2020   10:18:17   (  -0.00,-137.13) (  -0.74,-133.75)  384.99                80
 08/10/2020   22:40:15   (   0.00,-137.11) (  -0.44,-139.06)  222.20                80