Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 7 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2019   22:34:17   (   0.02,-137.19) (  -0.08,-137.63)   50.23                80
 07/03/2019   22:18:12   (   0.01,-137.18) (   0.92,-133.10)  465.56                80
 07/05/2019   10:37:21   (  -0.01,-137.19) (   0.25,-138.37)  134.54                80
 07/06/2019   10:21:16   (  -0.00,-137.18) (  -0.75,-133.84)  380.91                80
 07/07/2019   22:40:33   (  -0.00,-137.14) (  -0.46,-139.13)  227.11                80
 07/08/2019   22:24:28   (  -0.00,-137.13) (   0.54,-134.60)  288.20                80
 07/10/2019   10:43:36   (   0.00,-137.13) (   0.63,-139.87)  312.59                80
 07/11/2019   10:27:32   (   0.00,-137.12) (  -0.38,-135.34)  202.26                80
 07/12/2019   22:46:49   (   0.00,-137.07) (  -0.78,-140.65)  407.08                80
 07/13/2019   22:30:45   (   0.00,-137.06) (   0.23,-136.12)  107.45                80