Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 5 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/04/2020   10:39:28   (  -0.01,-137.20) (   0.22,-138.32)  127.22                80
 05/05/2020   10:18:04   (  -0.01,-137.20) (  -0.80,-133.79)  389.11                80
 05/06/2020   22:39:59   (   0.01,-137.19) (  -0.44,-139.08)  216.02                80
 05/07/2020   22:23:55   (   0.01,-137.19) (   0.59,-134.55)  300.02                80
 05/09/2020   10:45:42   (  -0.01,-137.18) (   0.60,-139.82)  300.85                80
 05/10/2020   10:24:18   (  -0.01,-137.17) (  -0.42,-135.29)  214.68                80
 05/11/2020   22:46:14   (   0.01,-137.15) (  -0.76,-140.59)  391.75                80
 05/12/2020   22:30:09   (   0.01,-137.14) (   0.27,-136.06)  123.69                80
 05/14/2020   10:51:57   (  -0.00,-137.13) (   0.92,-141.33)  477.87                80
 05/15/2020   10:30:31   (  -0.00,-137.12) (  -0.05,-136.79)   37.39                80
 05/17/2020   22:33:43   (   0.00,-137.08) (  -0.09,-137.56)   54.85                80