Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 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)
 10/03/2020   22:30:38   (  -0.04,-137.20) (   0.22,-136.05)  131.83                80
 10/05/2020   10:49:45   (   0.03,-137.21) (   0.96,-141.32)  468.30                80
 10/06/2020   10:33:40   (   0.04,-137.21) (  -0.08,-136.79)   48.01                80
 10/08/2020   22:34:10   (  -0.03,-137.19) (  -0.13,-137.56)   42.34                80
 10/09/2020   22:18:06   (  -0.03,-137.18) (   0.91,-133.04)  473.18                80
 10/11/2020   10:37:13   (   0.02,-137.17) (   0.27,-138.31)  128.96                80
 10/12/2020   10:21:08   (   0.02,-137.16) (  -0.72,-133.77)  386.05                80
 10/13/2020   22:40:23   (  -0.01,-137.14) (  -0.47,-139.07)  221.45                80
 10/14/2020   22:24:18   (  -0.01,-137.12) (   0.58,-134.55)  293.42                80
 10/16/2020   10:43:26   (   0.01,-137.10) (   0.60,-139.82)  309.46                80
 10/17/2020   10:27:20   (   0.01,-137.08) (  -0.39,-135.29)  205.02                80