Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 8 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/06/2020   22:17:54   (   0.00,-137.17) (   0.95,-133.02)  473.78                80
 08/08/2020   10:39:42   (  -0.00,-137.17) (   0.23,-138.29)  127.32                80
 08/09/2020   10:18:18   (  -0.00,-137.16) (  -0.76,-133.75)  388.69                80
 08/10/2020   22:40:15   (  -0.00,-137.16) (  -0.42,-139.06)  216.35                80
 08/11/2020   22:24:11   (  -0.00,-137.15) (   0.57,-134.53)  299.32                80
 08/13/2020   10:45:59   (   0.01,-137.14) (   0.60,-139.80)  302.92                80
 08/14/2020   10:24:34   (   0.01,-137.13) (  -0.39,-135.26)  212.15                80
 08/15/2020   22:46:32   (  -0.01,-137.11) (  -0.79,-140.57)  394.58                80
 08/16/2020   22:30:27   (  -0.01,-137.09) (   0.21,-136.04)  120.03                80
 08/18/2020   10:52:16   (   0.02,-137.06) (   0.97,-141.31)  483.66                80
 08/19/2020   10:30:51   (   0.01,-137.04) (  -0.03,-136.77)   30.52                80