Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 6 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/08/2019   10:46:06   (  -0.00,-137.21) (   0.62,-139.86)  302.62                80
 06/09/2019   10:24:41   (   0.01,-137.20) (  -0.38,-135.32)  213.38                80
 06/10/2019   22:46:39   (  -0.01,-137.17) (  -0.78,-140.63)  394.77                80
 06/11/2019   22:30:34   (  -0.02,-137.16) (   0.22,-136.10)  121.04                80
 06/13/2019   10:52:23   (   0.01,-137.18) (   0.97,-141.37)  477.99                80
 06/14/2019   10:30:59   (   0.01,-137.17) (  -0.09,-136.85)   37.30                80
 06/16/2019   22:34:11   (   0.00,-137.11) (  -0.12,-137.61)   57.53                80
 06/17/2019   22:18:06   (  -0.00,-137.10) (   0.88,-133.08)  457.44                80
 06/19/2019   10:37:15   (  -0.00,-137.10) (   0.31,-138.35)  142.68                80
 06/20/2019   10:18:30   (   0.01,-137.09) (  -0.70,-133.82)  371.96                80