Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 2 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/17/2020   22:23:45   (  -0.03,-137.21) (   0.56,-134.52)  307.21                80
 02/19/2020   10:45:33   (   0.04,-137.19) (   0.62,-139.79)  295.64                80
 02/20/2020   10:24:08   (   0.04,-137.19) (  -0.38,-135.26)  219.73                80
 02/21/2020   22:46:06   (  -0.04,-137.18) (  -0.77,-140.57)  385.54                80
 02/22/2020   22:30:01   (  -0.04,-137.17) (   0.23,-136.04)  129.73                80
 02/24/2020   10:51:50   (   0.04,-137.15) (   0.95,-141.31)  473.64                80
 02/25/2020   10:30:25   (   0.04,-137.14) (  -0.06,-136.78)   41.34                80
 02/27/2020   22:33:37   (  -0.04,-137.11) (  -0.15,-137.55)   50.05                80
 02/28/2020   22:17:32   (  -0.04,-137.09) (   0.86,-133.02)  464.51                80
 03/01/2020   10:39:21   (   0.05,-137.06) (   0.32,-138.29)  140.04                80