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

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/18/2019   22:34:21   (   0.03,-137.19) (  -0.09,-137.63)   51.07                80
 07/19/2019   22:18:17   (   0.03,-137.18) (   0.92,-133.10)  465.04                80
 07/21/2019   10:40:05   (  -0.03,-137.19) (   0.24,-138.37)  134.51                80
 07/22/2019   10:18:40   (  -0.03,-137.19) (  -0.77,-133.84)  381.18                80
 07/23/2019   22:40:38   (   0.03,-137.16) (  -0.39,-139.15)  226.74                80
 07/24/2019   22:24:33   (   0.03,-137.15) (   0.62,-134.62)  288.71                80
 07/26/2019   10:43:41   (  -0.04,-137.15) (   0.60,-139.88)  311.83                80
 07/27/2019   10:27:36   (  -0.04,-137.13) (  -0.41,-135.35)  202.93                80
 07/28/2019   22:46:53   (   0.05,-137.08) (  -0.74,-140.66)  406.95                80
 07/29/2019   22:30:49   (   0.05,-137.06) (   0.27,-136.13)  107.29                80