Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 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)
 11/01/2020   10:43:18   (   0.02,-137.21) (   0.60,-139.81)  296.72                80
 11/02/2020   10:27:12   (   0.02,-137.20) (  -0.39,-135.28)  219.28                80
 11/03/2020   22:46:27   (  -0.02,-137.19) (  -0.80,-140.58)  386.72                80
 11/04/2020   22:30:23   (  -0.02,-137.18) (   0.26,-136.06)  128.77                80
 11/06/2020   10:49:29   (   0.01,-137.16) (   0.96,-141.32)  473.70                80
 11/07/2020   10:33:25   (   0.01,-137.15) (  -0.09,-136.79)   41.31                80
 11/09/2020   22:33:55   (  -0.01,-137.10) (  -0.10,-137.56)   51.72                80
 11/10/2020   22:17:49   (  -0.01,-137.09) (   0.90,-133.03)  462.82                80
 11/12/2020   10:36:57   (   0.01,-137.06) (   0.26,-138.30)  140.79                80
 11/13/2020   10:20:51   (   0.01,-137.04) (  -0.74,-133.76)  373.40                80
 11/14/2020   22:40:06   (  -0.01,-137.00) (  -0.44,-139.07)  235.41                80