Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/05/2020   10:49:45   (   0.04,-137.21) (   0.93,-141.33)  468.36                80
 10/06/2020   10:33:40   (   0.04,-137.21) (  -0.05,-136.79)   47.87                80
 10/08/2020   22:34:11   (  -0.03,-137.19) (  -0.10,-137.57)   42.12                80
 10/09/2020   22:18:05   (  -0.03,-137.19) (   0.88,-133.03)  473.36                80
 10/11/2020   10:37:13   (   0.02,-137.17) (   0.29,-138.30)  128.99                80
 10/12/2020   10:21:08   (   0.02,-137.16) (  -0.75,-133.78)  386.04                80
 10/13/2020   22:40:23   (  -0.01,-137.14) (  -0.44,-139.08)  221.23                80
 10/14/2020   22:24:18   (  -0.01,-137.12) (   0.55,-134.54)  293.63                80
 10/16/2020   10:43:25   (   0.01,-137.10) (   0.63,-139.81)  309.43                80
 10/17/2020   10:27:20   (   0.01,-137.08) (  -0.36,-135.28)  205.07                80