Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 7 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/31/2020   22:30:20   (  -0.03,-137.19) (   0.25,-136.03)  133.56                80
 08/02/2020   10:49:29   (   0.02,-137.20) (   0.93,-141.30)  466.61                80
 08/03/2020   10:30:44   (   0.01,-137.20) (  -0.07,-136.76)   49.44                80
 08/05/2020   22:33:58   (  -0.01,-137.19) (  -0.07,-137.55)   40.15                80
 08/06/2020   22:17:54   (  -0.01,-137.19) (   0.93,-133.01)  476.08                80
 08/08/2020   10:37:02   (   0.01,-137.19) (   0.25,-138.28)  124.23                80
 08/09/2020   10:20:57   (   0.01,-137.19) (  -0.74,-133.75)  391.58                80
 08/10/2020   22:40:15   (  -0.01,-137.17) (  -0.44,-139.06)  215.09                80
 08/11/2020   22:24:10   (  -0.01,-137.16) (   0.56,-134.52)  300.27                80
 08/13/2020   10:43:20   (  -0.00,-137.15) (   0.57,-139.81)  301.58                80
 08/14/2020   10:27:15   (  -0.01,-137.14) (  -0.43,-135.27)  213.11                80