Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 8 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/14/2019   22:30:52   (   0.04,-137.19) (   0.30,-136.12)  122.72                80
 08/16/2019   10:52:39   (  -0.04,-137.20) (   0.90,-141.38)  477.49                80
 08/17/2019   10:31:15   (  -0.04,-137.19) (  -0.11,-136.85)   38.39                80
 08/19/2019   22:34:26   (   0.05,-137.17) (  -0.08,-137.62)   52.38                80
 08/20/2019   22:18:22   (   0.05,-137.16) (   0.94,-133.09)  463.17                80
 08/22/2019   10:40:10   (  -0.05,-137.15) (   0.21,-138.37)  138.26                80
 08/23/2019   10:18:46   (  -0.05,-137.13) (  -0.81,-133.84)  376.62                80
 08/24/2019   22:40:42   (   0.06,-137.10) (  -0.39,-139.13)  231.65                80
 08/25/2019   22:24:38   (   0.06,-137.08) (   0.63,-134.60)  282.67                80
 08/27/2019   10:46:25   (  -0.06,-137.06) (   0.58,-139.87)  320.48                80
 08/28/2019   10:25:00   (  -0.07,-137.03) (  -0.44,-135.34)  193.30                80