Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 8 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/25/2019   22:24:37   (   0.03,-137.20) (   0.58,-134.59)  297.10                80
 08/27/2019   10:46:25   (  -0.03,-137.19) (   0.56,-139.87)  305.20                80
 08/28/2019   10:25:01   (  -0.03,-137.17) (  -0.46,-135.34)  209.88                80
 08/29/2019   22:46:57   (   0.03,-137.15) (  -0.74,-140.64)  396.69                80
 08/30/2019   22:30:52   (   0.03,-137.14) (   0.28,-136.11)  118.23                80
 09/01/2019   10:50:00   (  -0.03,-137.11) (   0.92,-141.37)  484.81                80
 09/02/2019   10:33:55   (  -0.03,-137.10) (  -0.10,-136.84)   29.84                80
 09/04/2019   22:34:27   (   0.03,-137.05) (  -0.07,-137.61)   63.33                80
 09/05/2019   22:18:22   (   0.03,-137.03) (   0.89,-133.07)  450.82                80
 09/07/2019   10:40:10   (  -0.03,-136.99) (   0.26,-138.34)  153.58                80