Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 10 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/14/2019   10:46:20   (  -0.00,-137.21) (   0.59,-139.84)  300.34                80
 10/15/2019   10:24:56   (  -0.00,-137.21) (  -0.45,-135.32)  215.87                80
 10/16/2019   22:46:51   (   0.00,-137.20) (  -0.76,-140.62)  389.85                80
 10/17/2019   22:30:46   (   0.00,-137.19) (   0.27,-136.09)  125.82                80
 10/19/2019   10:49:54   (  -0.01,-137.18) (   0.91,-141.36)  476.29                80
 10/20/2019   10:33:48   (  -0.01,-137.17) (  -0.07,-136.82)   38.66                80
 10/22/2019   22:34:19   (   0.02,-137.13) (  -0.10,-137.60)   54.50                80
 10/23/2019   22:18:15   (   0.02,-137.11) (   0.94,-133.08)  460.05                80
 10/25/2019   10:37:22   (  -0.03,-137.09) (   0.25,-138.35)  143.27                80
 10/26/2019   10:21:16   (  -0.03,-137.07) (  -0.73,-133.81)  371.03                80