Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 8 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/29/2019   22:46:57   (   0.04,-137.20) (  -0.71,-140.64)  391.15                80
 08/30/2019   22:30:52   (   0.04,-137.20) (   0.25,-136.10)  125.19                80
 09/01/2019   10:52:40   (  -0.03,-137.20) (   0.89,-141.37)  475.65                80
 09/02/2019   10:31:16   (  -0.03,-137.19) (  -0.13,-136.84)   40.41                80
 09/04/2019   22:34:28   (   0.04,-137.18) (  -0.04,-137.61)   49.30                80
 09/05/2019   22:18:23   (   0.04,-137.17) (   0.98,-133.08)  466.21                80
 09/07/2019   10:40:10   (  -0.04,-137.15) (   0.23,-138.34)  135.98                80
 09/08/2019   10:18:46   (  -0.05,-137.14) (  -0.79,-133.81)  379.10                80
 09/09/2019   22:40:42   (   0.05,-137.12) (  -0.40,-139.12)  227.47                80
 09/10/2019   22:24:38   (   0.05,-137.11) (   0.63,-134.59)  287.45                80