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

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/06/2020   22:40:00   (   0.01,-137.19) (  -0.39,-139.09)  216.14                80
 05/07/2020   22:23:55   (   0.02,-137.19) (   0.58,-134.55)  299.83                80
 05/09/2020   10:45:43   (  -0.01,-137.18) (   0.55,-139.83)  301.41                80
 05/10/2020   10:24:17   (  -0.01,-137.17) (  -0.42,-135.29)  214.04                80
 05/11/2020   22:46:14   (   0.01,-137.15) (  -0.77,-140.59)  392.23                80
 05/12/2020   22:30:09   (   0.01,-137.14) (   0.27,-136.06)  123.12                80
 05/14/2020   10:51:57   (  -0.00,-137.12) (   0.93,-141.32)  478.74                80
 05/15/2020   10:30:32   (  -0.00,-137.11) (  -0.10,-136.80)   36.42                80
 05/17/2020   22:33:43   (   0.00,-137.07) (  -0.10,-137.56)   55.72                80
 05/18/2020   22:17:39   (   0.00,-137.05) (   0.93,-133.03)  459.13                80