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) (  -0.79,-133.75)  399.16                80
 11/30/2020   22:39:56   (  -0.00,-137.24) (  -0.40,-139.05)  205.60                80
 12/01/2020   22:23:50   (  -0.01,-137.24) (   0.61,-134.51)  310.94                80
 12/03/2020   10:42:56   (   0.01,-137.24) (   0.57,-139.78)  289.49                80
 12/04/2020   10:26:51   (   0.01,-137.23) (  -0.43,-135.24)  226.46                80
 12/05/2020   22:46:06   (  -0.01,-137.21) (  -0.75,-140.54)  379.88                80
 12/06/2020   22:30:01   (  -0.01,-137.20) (   0.26,-136.01)  135.74                80
 12/08/2020   10:49:07   (   0.00,-137.19) (   0.92,-141.28)  465.67                80
 12/09/2020   10:33:02   (   0.00,-137.18) (  -0.09,-136.74)   49.61                80
 12/11/2020   22:33:31   (  -0.01,-137.13) (  -0.08,-137.51)   42.88                80