Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 10 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/06/2019   22:37:04   (   0.02,-137.20) (  -0.06,-137.59)   44.25                80
 10/07/2019   22:15:40   (   0.02,-137.20) (   0.97,-133.06)  472.17                80
 10/09/2019   10:37:27   (  -0.02,-137.21) (   0.22,-138.33)  127.47                80
 10/10/2019   10:21:22   (  -0.01,-137.21) (  -0.76,-133.80)  388.90                80
 10/11/2019   22:40:38   (   0.01,-137.20) (  -0.40,-139.11)  217.06                80
 10/12/2019   22:24:32   (   0.00,-137.20) (   0.58,-134.57)  299.03                80
 10/14/2019   10:43:40   (   0.00,-137.20) (   0.62,-139.84)  301.48                80
 10/15/2019   10:27:35   (   0.01,-137.19) (  -0.42,-135.31)  214.30                80
 10/16/2019   22:46:50   (  -0.02,-137.17) (  -0.79,-140.61)  392.70                80
 10/17/2019   22:28:05   (  -0.03,-137.16) (   0.19,-136.08)  122.40                80