Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/29/2020   10:20:40   (   0.01,-137.24) (  -0.77,-133.74)  399.17                80
 11/30/2020   22:39:55   (  -0.00,-137.24) (  -0.41,-139.04)  205.58                80
 12/01/2020   22:23:50   (  -0.01,-137.24) (   0.59,-134.51)  310.95                80
 12/03/2020   10:42:56   (   0.01,-137.24) (   0.59,-139.77)  289.48                80
 12/04/2020   10:26:51   (   0.01,-137.23) (  -0.42,-135.24)  226.48                80
 12/05/2020   22:46:06   (  -0.01,-137.21) (  -0.77,-140.54)  379.88                80
 12/06/2020   22:30:00   (  -0.01,-137.20) (   0.24,-136.01)  135.77                80
 12/08/2020   10:49:07   (   0.00,-137.19) (   0.94,-141.27)  465.66                80
 12/09/2020   10:33:01   (   0.00,-137.18) (  -0.07,-136.74)   49.70                80
 12/11/2020   22:33:31   (  -0.01,-137.13) (  -0.10,-137.51)   42.88                80
 12/12/2020   22:17:26   (  -0.01,-137.11) (   0.91,-132.97)  471.81                80