Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 11 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2020   22:46:28   (  -0.02,-137.22) (  -0.76,-140.59)  383.80                80
 11/04/2020   22:30:23   (  -0.02,-137.22) (   0.23,-136.05)  132.69                80
 11/06/2020   10:49:30   (   0.02,-137.21) (   0.92,-141.32)  468.39                80
 11/07/2020   10:33:24   (   0.02,-137.21) (  -0.07,-136.79)   47.52                80
 11/09/2020   22:33:54   (  -0.01,-137.19) (  -0.12,-137.56)   42.74                80
 11/10/2020   22:17:50   (  -0.01,-137.18) (   0.94,-133.03)  472.90                80
 11/12/2020   10:36:56   (   0.01,-137.16) (   0.27,-138.29)  129.28                80
 11/13/2020   10:20:51   (   0.01,-137.15) (  -0.73,-133.76)  385.89                80
 11/14/2020   22:40:06   (  -0.01,-137.12) (  -0.46,-139.06)  221.26                80
 11/15/2020   22:24:00   (  -0.01,-137.11) (   0.55,-134.53)  293.47                80
 11/17/2020   10:43:08   (   0.01,-137.08) (   0.60,-139.80)  310.02                80