Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/23/2020   10:33:14   (   0.01,-137.23) (  -0.11,-136.78)   51.84                80
 11/25/2020   22:33:44   (  -0.01,-137.23) (  -0.07,-137.54)   35.57                80
 11/26/2020   22:17:39   (  -0.01,-137.23) (   0.94,-133.01)  481.47                80
 11/28/2020   10:36:45   (   0.01,-137.25) (   0.26,-138.27)  117.52                80
 11/29/2020   10:20:40   (   0.01,-137.24) (  -0.75,-133.74)  399.08                80
 11/30/2020   22:39:55   (  -0.01,-137.23) (  -0.43,-139.04)  206.98                80
 12/01/2020   22:23:49   (  -0.01,-137.22) (   0.58,-134.51)  309.06                80
 12/03/2020   10:42:57   (   0.01,-137.22) (   0.55,-139.78)  291.52                80
 12/04/2020   10:26:51   (   0.01,-137.21) (  -0.46,-135.25)  224.00                80
 12/05/2020   22:46:06   (  -0.01,-137.18) (  -0.78,-140.54)  383.54                80
 12/06/2020   22:30:00   (  -0.01,-137.16) (   0.23,-136.01)  131.61                80