Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 6 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/10/2020   10:45:35   (   0.00,-137.18) (   0.60,-139.76)  294.60                80
 06/11/2020   10:24:11   (   0.00,-137.19) (  -0.44,-135.24)  222.37                80
 06/12/2020   22:48:46   (  -0.01,-137.19) (  -0.78,-140.53)  381.45                80
 06/13/2020   22:27:22   (  -0.00,-137.19) (   0.26,-136.00)  135.41                80
 06/15/2020   10:51:49   (   0.00,-137.20) (   0.92,-141.27)  464.18                80
 06/16/2020   10:30:25   (   0.00,-137.19) (  -0.12,-136.74)   52.24                80
 06/18/2020   22:33:35   (   0.01,-137.18) (  -0.05,-137.51)   36.96                80
 06/19/2020   22:17:30   (   0.01,-137.17) (   0.93,-132.97)  478.88                80
 06/21/2020   10:39:17   (  -0.00,-137.16) (   0.25,-138.23)  122.49                80
 06/22/2020   10:17:53   (  -0.00,-137.15) (  -0.79,-133.71)  392.80                80