Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 7 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)
 07/25/2020   22:40:06   (  -0.03,-137.20) (  -0.46,-139.03)  209.66                80
 07/26/2020   22:24:03   (  -0.03,-137.20) (   0.59,-134.51)  306.32                80
 07/28/2020   10:45:43   (   0.03,-137.19) (   0.59,-139.78)  294.98                72
 07/29/2020   10:24:27   (   0.03,-137.18) (  -0.40,-135.25)  220.43                80
 07/30/2020   22:46:24   (  -0.02,-137.17) (  -0.79,-140.55)  386.38                80
 07/31/2020   22:30:21   (   0.01,-137.16) (   0.26,-136.03)  127.97                80
 08/02/2020   10:49:29   (  -0.01,-137.14) (   0.92,-141.30)  474.39                80
 08/03/2020   10:33:24   (  -0.01,-137.13) (  -0.07,-136.77)   40.59                80
 08/05/2020   22:33:57   (   0.01,-137.09) (  -0.11,-137.54)   51.88                80
 08/06/2020   22:17:54   (   0.00,-137.08) (   0.94,-133.02)  462.96                80
 08/08/2020   10:37:02   (  -0.00,-137.05) (   0.24,-138.29)  139.94                80