Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/12/2022   22:31:19   (  -0.01,-137.31) (   0.28,-136.01)  148.12                80
 12/14/2022   10:53:09   (   0.00,-137.30) (   0.87,-141.29)  453.49                80
 12/15/2022   10:31:46   (  -0.00,-137.30) (  -0.13,-136.76)   61.45                80
 12/17/2022   22:37:41   (   0.00,-137.26) (  -0.07,-137.53)   30.99                80
 12/18/2022   22:18:57   (   0.01,-137.25) (   0.93,-133.00)  483.70                80
 12/20/2022   10:40:48   (   0.00,-137.23) (   0.21,-138.28)  118.99                80
 12/21/2022   10:19:24   (   0.00,-137.22) (  -0.79,-133.75)  394.96                80
 12/22/2022   22:44:01   (  -0.01,-137.17) (  -0.45,-139.05)  214.29                80
 12/23/2022   22:25:18   (  -0.01,-137.15) (   0.56,-134.52)  299.04                80
 12/25/2022   10:47:08   (   0.01,-137.12) (   0.58,-139.80)  305.43                80