Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 4 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/04/2020   22:40:00   (   0.01,-137.19) (  -0.40,-139.11)  217.82                80
 04/05/2020   22:23:56   (   0.01,-137.19) (   0.62,-134.58)  298.07                80
 04/07/2020   10:45:43   (  -0.01,-137.18) (   0.58,-139.84)  302.53                80
 04/08/2020   10:24:19   (  -0.01,-137.17) (  -0.44,-135.31)  212.77                80
 04/09/2020   22:46:15   (   0.01,-137.15) (  -0.77,-140.61)  394.68                80
 04/10/2020   22:30:11   (   0.02,-137.14) (   0.25,-136.08)  120.37                80
 04/12/2020   10:51:58   (  -0.02,-137.13) (   0.95,-141.34)  481.19                80
 04/13/2020   10:30:34   (  -0.02,-137.11) (  -0.07,-136.81)   33.38                80
 04/15/2020   22:33:45   (   0.01,-137.05) (  -0.11,-137.58)   60.85                80
 04/16/2020   22:17:41   (   0.01,-137.03) (   0.91,-133.06)  453.62                80
 04/18/2020   10:39:28   (  -0.00,-137.02) (   0.29,-138.32)  148.63                80