Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 10 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/23/2019   22:18:14   (  -0.00,-137.21) (   0.92,-133.07)  471.75                80
 10/25/2019   10:40:02   (   0.00,-137.20) (   0.26,-138.34)  129.44                80
 10/26/2019   10:18:37   (   0.00,-137.20) (  -0.78,-133.81)  386.75                80
 10/27/2019   22:40:32   (  -0.00,-137.20) (  -0.43,-139.11)  218.12                80
 10/28/2019   22:24:27   (  -0.00,-137.20) (   0.55,-134.58)  297.79                80
 10/30/2019   10:46:14   (   0.00,-137.18) (   0.63,-139.85)  304.34                80
 10/31/2019   10:24:50   (   0.00,-137.17) (  -0.42,-135.32)  211.08                80
 11/01/2019   22:46:45   (  -0.00,-137.16) (  -0.79,-140.62)  395.09                80
 11/02/2019   22:30:41   (   0.00,-137.15) (   0.26,-136.10)  120.06                80
 11/04/2019   10:52:27   (   0.00,-137.13) (   0.98,-141.36)  482.87                80
 11/05/2019   10:31:02   (   0.00,-137.11) (  -0.07,-136.83)   32.07                80