Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2020 7 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/07/2020   10:39:24   (   0.03,-137.19) (   0.25,-138.24)  119.41                80
 07/08/2020   10:18:00   (   0.03,-137.20) (  -0.74,-133.71)  397.55                80
 07/09/2020   22:39:57   (  -0.04,-137.20) (  -0.45,-139.02)  206.72                80
 07/10/2020   22:23:54   (  -0.04,-137.21) (   0.60,-134.49)  310.15                80
 07/12/2020   10:45:42   (   0.04,-137.22) (   0.60,-139.76)  289.15                80
 07/13/2020   10:24:18   (   0.03,-137.22) (  -0.38,-135.22)  227.29                80
 07/14/2020   22:46:15   (  -0.03,-137.22) (  -0.80,-140.53)  378.25                80
 07/15/2020   22:30:11   (  -0.03,-137.22) (   0.25,-136.01)  137.73                80
 07/17/2020   10:52:00   (   0.02,-137.22) (   0.95,-141.28)  463.05                80
 07/18/2020   10:30:36   (  -0.00,-137.21) (  -0.09,-136.75)   51.84                80