Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 4 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/25/2020   22:46:15   (   0.02,-137.19) (  -0.75,-140.61)  390.05                80
 04/26/2020   22:30:11   (   0.02,-137.18) (   0.27,-136.08)  125.62                80
 04/28/2020   10:51:58   (  -0.02,-137.17) (   0.92,-141.34)  475.93                80
 04/29/2020   10:30:34   (  -0.02,-137.15) (  -0.10,-136.81)   39.15                80
 05/01/2020   22:33:45   (   0.01,-137.11) (  -0.12,-137.57)   53.20                80
 05/02/2020   22:17:40   (   0.01,-137.09) (   0.91,-133.04)  461.55                80
 05/04/2020   10:39:27   (  -0.01,-137.07) (   0.29,-138.31)  141.37                80
 05/05/2020   10:18:03   (  -0.01,-137.05) (  -0.74,-133.78)  372.92                80
 05/06/2020   22:39:59   (   0.01,-137.01) (  -0.44,-139.08)  235.43                80
 05/07/2020   22:23:54   (   0.01,-136.99) (   0.53,-134.54)  278.55                80