Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 10 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/07/2019   22:18:19   (   0.01,-137.20) (   0.92,-133.05)  472.24                80
 10/09/2019   10:37:27   (  -0.01,-137.21) (   0.22,-138.33)  127.69                80
 10/10/2019   10:21:22   (  -0.01,-137.21) (  -0.76,-133.80)  388.50                80
 10/11/2019   22:40:38   (   0.01,-137.19) (  -0.40,-139.11)  217.67                80
 10/12/2019   22:24:32   (   0.01,-137.19) (   0.58,-134.57)  298.28                80
 10/14/2019   10:43:40   (  -0.01,-137.19) (   0.61,-139.84)  302.49                80
 10/15/2019   10:27:35   (  -0.01,-137.18) (  -0.43,-135.31)  213.04                80
 10/16/2019   22:46:51   (   0.01,-137.16) (  -0.78,-140.61)  394.37                80
 10/17/2019   22:28:06   (  -0.01,-137.14) (   0.26,-136.09)  120.95                80
 10/19/2019   10:52:33   (   0.01,-137.13) (   0.93,-141.36)  481.62                80
 10/20/2019   10:31:08   (   0.00,-137.11) (  -0.05,-136.82)   32.62                80