Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2022 12 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/11/2022   22:47:22   (  -0.01,-137.31) (  -0.75,-140.53)  367.11                80
 12/12/2022   22:31:20   (  -0.01,-137.31) (   0.31,-136.01)  148.14                80
 12/14/2022   10:53:09   (   0.00,-137.30) (   0.90,-141.28)  453.49                80
 12/15/2022   10:31:45   (  -0.00,-137.30) (  -0.10,-136.75)   61.51                80
 12/17/2022   22:35:01   (   0.01,-137.26) (  -0.04,-137.54)   31.01                80
 12/18/2022   22:18:58   (   0.01,-137.25) (   0.96,-133.01)  483.67                80
 12/20/2022   10:40:47   (   0.00,-137.23) (   0.24,-138.28)  118.98                80
 12/21/2022   10:19:24   (   0.00,-137.22) (  -0.76,-133.75)  394.92                80
 12/22/2022   22:41:22   (  -0.01,-137.17) (  -0.42,-139.06)  214.31                80
 12/23/2022   22:22:38   (  -0.01,-137.15) (   0.58,-134.53)  298.99                80