Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 8 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/13/2020   10:45:58   (   0.03,-137.18) (   0.64,-139.79)  297.39                80
 08/14/2020   10:24:35   (   0.02,-137.18) (  -0.42,-135.27)  218.81                80
 08/15/2020   22:47:00   (  -0.01,-137.18) (  -0.77,-140.57)  386.30                52
 08/16/2020   22:30:29   (   0.02,-137.18) (   0.29,-136.05)  128.78                80
 08/18/2020   10:49:36   (  -0.01,-137.17) (   0.94,-141.31)  472.81                80
 08/19/2020   10:33:33   (  -0.01,-137.16) (  -0.11,-136.79)   42.80                80
 08/21/2020   22:34:05   (   0.01,-137.14) (  -0.07,-137.56)   48.00                80
 08/22/2020   22:18:01   (   0.00,-137.13) (   0.93,-133.03)  467.19                80
 08/24/2020   10:37:09   (  -0.00,-137.10) (   0.25,-138.30)  135.73                80
 08/25/2020   10:21:05   (  -0.00,-137.09) (  -0.75,-133.77)  378.89                80
 08/26/2020   22:40:22   (   0.00,-137.06) (  -0.42,-139.07)  228.58                80