Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 11 10.  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   10:39:55   (  -0.00,-137.22) (   0.26,-138.34)  128.40                80
 11/11/2019   10:18:31   (  -0.00,-137.22) (  -0.79,-133.82)  387.77                80
 11/12/2019   22:40:26   (   0.00,-137.20) (  -0.43,-139.12)  217.91                80
 11/13/2019   22:24:21   (   0.00,-137.20) (   0.56,-134.58)  297.81                80
 11/15/2019   10:46:08   (  -0.00,-137.19) (   0.60,-139.85)  303.78                80
 11/16/2019   10:24:43   (   0.00,-137.17) (  -0.39,-135.32)  211.34                80
 11/17/2019   22:46:39   (  -0.01,-137.15) (  -0.76,-140.63)  396.14                80
 11/18/2019   22:30:33   (  -0.01,-137.13) (   0.23,-136.09)  118.62                80
 11/20/2019   10:52:20   (   0.01,-137.11) (   0.99,-141.35)  484.21                80
 11/21/2019   10:30:55   (   0.01,-137.09) (  -0.06,-136.83)   30.22                80
 11/23/2019   22:34:05   (  -0.01,-137.03) (  -0.15,-137.59)   64.16                80