Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 3 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/11/2020   10:51:54   (  -0.01,-137.21) (   0.91,-141.34)  470.33                80
 03/12/2020   10:30:30   (  -0.01,-137.21) (  -0.10,-136.81)   46.15                80
 03/14/2020   22:33:42   (   0.01,-137.21) (  -0.10,-137.58)   42.74                80
 03/15/2020   22:17:38   (   0.01,-137.20) (   0.97,-133.06)  473.32                80
 03/17/2020   10:39:26   (  -0.01,-137.20) (   0.25,-138.32)  128.12                80
 03/18/2020   10:18:01   (  -0.01,-137.19) (  -0.76,-133.79)  387.42                80
 03/19/2020   22:39:58   (   0.02,-137.18) (  -0.39,-139.10)  218.88                80
 03/20/2020   22:23:54   (   0.02,-137.17) (   0.62,-134.57)  296.61                80
 03/22/2020   10:43:01   (  -0.02,-137.16) (   0.60,-139.83)  305.26                80
 03/23/2020   10:26:57   (  -0.02,-137.15) (  -0.42,-135.30)  210.00                80