Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 5 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/09/2020   10:45:43   (  -0.01,-137.19) (   0.56,-139.83)  299.64                80
 05/10/2020   10:24:17   (  -0.02,-137.19) (  -0.41,-135.28)  216.44                80
 05/11/2020   22:46:14   (   0.01,-137.18) (  -0.77,-140.59)  388.50                80
 05/12/2020   22:30:09   (   0.01,-137.18) (   0.26,-136.06)  127.49                80
 05/14/2020   10:51:57   (  -0.01,-137.17) (   0.93,-141.32)  473.66                80
 05/15/2020   10:30:32   (  -0.01,-137.16) (  -0.10,-136.80)   42.05                80
 05/17/2020   22:33:43   (   0.00,-137.14) (  -0.10,-137.56)   48.02                80
 05/18/2020   22:17:38   (   0.00,-137.13) (   0.93,-133.03)  467.48                80
 05/20/2020   10:39:26   (  -0.00,-137.11) (   0.26,-138.29)  134.59                80
 05/21/2020   10:18:01   (  -0.00,-137.10) (  -0.77,-133.77)  380.36                80