Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 10 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/08/2020   22:34:10   (  -0.04,-137.20) (  -0.14,-137.56)   41.39                80
 10/09/2020   22:18:06   (  -0.04,-137.19) (   0.91,-133.03)  474.25                80
 10/11/2020   10:37:13   (   0.03,-137.18) (   0.27,-138.31)  128.24                80
 10/12/2020   10:21:08   (   0.03,-137.17) (  -0.72,-133.77)  386.90                80
 10/13/2020   22:40:24   (  -0.02,-137.15) (  -0.42,-139.08)  219.91                80
 10/14/2020   22:24:18   (  -0.02,-137.13) (   0.57,-134.55)  295.09                80
 10/16/2020   10:43:26   (   0.02,-137.11) (   0.61,-139.82)  308.11                80
 10/17/2020   10:27:20   (   0.02,-137.10) (  -0.38,-135.28)  206.48                80
 10/18/2020   22:46:36   (  -0.02,-137.06) (  -0.82,-140.58)  401.43                80
 10/19/2020   22:30:30   (  -0.02,-137.04) (   0.18,-136.05)  112.71                80