Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 5 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2020   22:23:55   (   0.02,-137.20) (   0.61,-134.56)  300.87                80
 05/09/2020   10:45:42   (  -0.01,-137.20) (   0.59,-139.82)  299.30                80
 05/10/2020   10:24:18   (  -0.02,-137.19) (  -0.44,-135.29)  216.94                80
 05/11/2020   22:46:14   (   0.01,-137.19) (  -0.74,-140.59)  387.87                80
 05/12/2020   22:30:09   (   0.01,-137.19) (   0.23,-136.05)  128.33                80
 05/14/2020   10:51:57   (  -0.01,-137.18) (   0.90,-141.33)  472.49                80
 05/15/2020   10:30:32   (  -0.01,-137.17) (  -0.07,-136.79)   43.42                80
 05/17/2020   22:33:43   (   0.00,-137.15) (  -0.07,-137.57)   46.43                80
 05/18/2020   22:17:38   (   0.00,-137.15) (   0.91,-133.02)  469.28                80
 05/20/2020   10:39:26   (  -0.00,-137.13) (   0.23,-138.30)  132.47                80
 05/21/2020   10:18:01   (  -0.00,-137.12) (  -0.74,-133.76)  382.68                80