Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 3 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2020   22:30:10   (   0.01,-137.22) (   0.30,-136.09)  129.81                80
 03/27/2020   10:51:57   (  -0.02,-137.22) (   0.91,-141.35)  470.47                80
 03/28/2020   10:30:33   (  -0.02,-137.22) (  -0.10,-136.82)   45.27                80
 03/30/2020   22:33:46   (   0.03,-137.19) (  -0.04,-137.60)   46.04                80
 03/31/2020   22:17:40   (   0.03,-137.18) (   0.92,-133.06)  469.28                80
 04/02/2020   10:39:28   (  -0.03,-137.17) (   0.23,-138.33)  132.68                80
 04/03/2020   10:18:04   (  -0.02,-137.15) (  -0.79,-133.80)  381.95                80
 04/04/2020   22:40:00   (   0.02,-137.12) (  -0.41,-139.10)  226.20                80
 04/05/2020   22:23:56   (   0.01,-137.10) (   0.60,-134.57)  288.37                80
 04/07/2020   10:45:43   (  -0.01,-137.08) (   0.60,-139.84)  314.27                80