Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 6 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/02/2020   22:36:20   (  -0.00,-137.19) (  -0.07,-137.54)   38.69                80
 06/03/2020   22:14:56   (   0.00,-137.19) (   0.97,-133.01)  477.72                80
 06/05/2020   10:39:23   (  -0.00,-137.19) (   0.22,-138.27)  122.86                80
 06/06/2020   10:17:57   (  -0.01,-137.19) (  -0.76,-133.73)  393.05                80
 06/07/2020   22:39:54   (   0.01,-137.17) (  -0.40,-139.04)  212.47                80
 06/08/2020   22:23:48   (   0.01,-137.17) (   0.58,-134.50)  303.31                80
 06/10/2020   10:45:35   (  -0.01,-137.16) (   0.61,-139.76)  297.96                80
 06/11/2020   10:24:11   (  -0.01,-137.15) (  -0.43,-135.24)  217.64                80
 06/12/2020   22:46:06   (   0.00,-137.13) (  -0.78,-140.53)  388.45                80
 06/13/2020   22:30:02   (   0.00,-137.12) (   0.26,-136.00)  127.04                80
 06/15/2020   10:51:49   (  -0.00,-137.10) (   0.93,-141.27)  474.72                80
 06/16/2020   10:30:24   (  -0.00,-137.09) (  -0.05,-136.73)   40.48                80