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)  129.79                80
 03/27/2020   10:51:57   (  -0.02,-137.22) (   0.92,-141.35)  470.50                80
 03/28/2020   10:30:33   (  -0.02,-137.22) (  -0.10,-136.82)   45.24                80
 03/30/2020   22:33:46   (   0.03,-137.19) (  -0.04,-137.60)   46.07                80
 03/31/2020   22:17:41   (   0.03,-137.18) (   0.98,-133.07)  469.22                80
 04/02/2020   10:39:28   (  -0.03,-137.17) (   0.23,-138.33)  132.78                80
 04/03/2020   10:18:04   (  -0.02,-137.15) (  -0.78,-133.80)  381.83                80
 04/04/2020   22:40:00   (   0.02,-137.12) (  -0.42,-139.10)  226.32                80
 04/05/2020   22:23:56   (   0.01,-137.10) (   0.59,-134.57)  288.22                80
 04/07/2020   10:45:43   (  -0.01,-137.08) (   0.62,-139.83)  314.45                80