Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 8 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/27/2020   22:24:17   (  -0.04,-137.19) (   0.54,-134.53)  303.74                80
 08/29/2020   10:46:05   (   0.04,-137.20) (   0.64,-139.80)  295.78                80
 08/30/2020   10:24:42   (   0.04,-137.21) (  -0.42,-135.28)  220.51                80
 08/31/2020   22:46:38   (  -0.03,-137.20) (  -0.81,-140.57)  385.34                80
 09/01/2020   22:30:34   (  -0.02,-137.20) (   0.25,-136.05)  130.87                80
 09/03/2020   10:49:43   (   0.02,-137.20) (   0.92,-141.32)  469.08                80
 09/04/2020   10:33:38   (   0.02,-137.20) (  -0.08,-136.79)   47.01                80
 09/06/2020   22:34:11   (  -0.02,-137.18) (  -0.08,-137.56)   43.53                80
 09/07/2020   22:18:07   (  -0.02,-137.17) (   0.92,-133.03)  472.09                80
 09/09/2020   10:37:15   (   0.01,-137.16) (   0.25,-138.30)  129.27                80
 09/10/2020   10:21:11   (   0.01,-137.15) (  -0.75,-133.77)  385.64                80