Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2020   10:39:28   (  -0.02,-137.21) (   0.26,-138.32)  127.67                80
 04/03/2020   10:18:03   (  -0.01,-137.20) (  -0.76,-133.79)  388.04                80
 04/04/2020   22:40:00   (   0.01,-137.18) (  -0.45,-139.10)  218.85                80
 04/05/2020   22:23:55   (   0.00,-137.17) (   0.57,-134.57)  296.66                80
 04/07/2020   10:45:43   (  -0.00,-137.17) (   0.57,-139.84)  304.21                80
 04/08/2020   10:24:19   (  -0.01,-137.16) (  -0.45,-135.31)  210.77                80
 04/09/2020   22:46:15   (   0.01,-137.12) (  -0.76,-140.61)  397.59                80
 04/10/2020   22:30:11   (   0.01,-137.11) (   0.26,-136.08)  117.09                80
 04/12/2020   10:51:58   (  -0.01,-137.09) (   0.94,-141.35)  484.83                80
 04/13/2020   10:30:34   (  -0.02,-137.07) (  -0.08,-136.82)   29.36                80