Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/10/2019   10:39:56   (   0.00,-137.22) (   0.24,-138.35)  128.40                80
 11/11/2019   10:18:30   (   0.00,-137.22) (  -0.75,-133.81)  387.83                80
 11/12/2019   22:40:27   (  -0.00,-137.20) (  -0.40,-139.12)  217.97                80
 11/13/2019   22:24:21   (  -0.00,-137.20) (   0.59,-134.59)  297.81                80
 11/15/2019   10:46:08   (   0.01,-137.19) (   0.57,-139.86)  303.70                80
 11/16/2019   10:24:43   (   0.01,-137.17) (  -0.42,-135.32)  211.39                80
 11/17/2019   22:46:38   (  -0.01,-137.15) (  -0.79,-140.62)  396.33                80
 11/18/2019   22:30:33   (  -0.00,-137.13) (   0.20,-136.08)  118.35                80
 11/20/2019   10:52:20   (   0.00,-137.11) (   0.96,-141.36)  484.52                80
 11/21/2019   10:30:55   (   0.00,-137.09) (  -0.03,-136.82)   29.96                80