Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/01/2019   10:46:00   (   0.00,-137.21) (   0.58,-139.84)  300.32                80
 12/02/2019   10:24:34   (  -0.00,-137.20) (  -0.42,-135.31)  215.74                80
 12/03/2019   22:49:10   (   0.00,-137.19) (  -0.79,-140.61)  389.87                80
 12/04/2019   22:27:45   (   0.01,-137.19) (   0.27,-136.08)  126.03                80
 12/06/2019   10:52:11   (  -0.00,-137.18) (   0.93,-141.35)  474.58                80
 12/07/2019   10:30:46   (  -0.01,-137.17) (  -0.07,-136.81)   41.11                80
 12/09/2019   22:36:37   (  -0.00,-137.14) (  -0.08,-137.59)   50.18                80
 12/10/2019   22:15:11   (   0.00,-137.13) (   0.92,-133.05)  464.84                80
 12/12/2019   10:39:38   (   0.01,-137.11) (   0.28,-138.31)  137.47                80
 12/13/2019   10:18:12   (   0.00,-137.09) (  -0.72,-133.78)  376.84                80