Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 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)
 11/11/2019   10:18:30   (  -0.00,-137.21) (  -0.74,-133.81)  387.78                80
 11/12/2019   22:40:26   (   0.00,-137.20) (  -0.41,-139.12)  217.84                80
 11/13/2019   22:24:21   (   0.00,-137.20) (   0.58,-134.58)  297.91                80
 11/15/2019   10:46:08   (   0.00,-137.19) (   0.58,-139.86)  303.69                80
 11/16/2019   10:24:43   (   0.00,-137.18) (  -0.41,-135.32)  211.44                80
 11/17/2019   22:46:38   (  -0.01,-137.15) (  -0.80,-140.62)  395.98                80
 11/18/2019   22:30:34   (  -0.01,-137.13) (   0.25,-136.09)  118.77                80
 11/20/2019   10:52:20   (   0.01,-137.11) (   0.97,-141.35)  484.13                80
 11/21/2019   10:30:55   (   0.01,-137.09) (  -0.08,-136.83)   30.40                80
 11/23/2019   22:34:05   (  -0.01,-137.03) (  -0.13,-137.59)   64.01                80