Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 7 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/12/2019   22:46:50   (   0.02,-137.19) (  -0.73,-140.66)  395.08                80
 07/13/2019   22:30:46   (   0.02,-137.19) (   0.28,-136.13)  121.28                80
 07/15/2019   10:52:33   (  -0.02,-137.20) (   0.94,-141.39)  477.50                80
 07/16/2019   10:31:09   (  -0.02,-137.20) (  -0.12,-136.87)   38.52                80
 07/18/2019   22:34:21   (   0.02,-137.16) (  -0.08,-137.63)   53.58                80
 07/19/2019   22:18:17   (   0.02,-137.16) (   0.92,-133.10)  462.18                80
 07/21/2019   10:37:25   (  -0.02,-137.17) (   0.23,-138.37)  137.35                80
 07/22/2019   10:21:21   (  -0.02,-137.16) (  -0.77,-133.84)  378.06                80
 07/23/2019   22:40:37   (   0.03,-137.12) (  -0.44,-139.14)  230.84                80
 07/24/2019   22:24:32   (   0.02,-137.10) (   0.57,-134.61)  284.30                80
 07/26/2019   10:43:41   (  -0.03,-137.11) (   0.59,-139.88)  316.27                80