Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 8 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)
 08/13/2019   22:46:56   (   0.04,-137.19) (  -0.74,-140.65)  394.07                80
 08/14/2019   22:30:51   (   0.04,-137.19) (   0.27,-136.12)  121.62                80
 08/16/2019   10:52:39   (  -0.04,-137.18) (   0.87,-141.39)  479.04                80
 08/17/2019   10:31:15   (  -0.04,-137.17) (  -0.14,-136.86)   36.51                80
 08/19/2019   22:34:27   (   0.05,-137.14) (  -0.05,-137.63)   55.69                80
 08/20/2019   22:18:22   (   0.05,-137.12) (   0.97,-133.10)  459.36                80
 08/22/2019   10:40:10   (  -0.05,-137.11) (   0.24,-138.36)  142.55                80
 08/23/2019   10:18:45   (  -0.05,-137.09) (  -0.77,-133.83)  371.87                80
 08/24/2019   22:40:41   (   0.06,-137.05) (  -0.43,-139.13)  237.28                80
 08/25/2019   22:24:37   (   0.06,-137.03) (   0.59,-134.60)  276.57                80