Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2019 5 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2019   10:45:51   (  -0.01,-137.21) (   0.57,-139.82)  297.67                80
 05/08/2019   10:24:26   (  -0.01,-137.20) (  -0.42,-135.29)  217.85                80
 05/09/2019   22:46:24   (   0.01,-137.17) (  -0.76,-140.60)  390.52                80
 05/10/2019   22:30:19   (   0.01,-137.16) (   0.23,-136.06)  124.95                80
 05/12/2019   10:52:09   (  -0.00,-137.17) (   0.91,-141.34)  474.63                80
 05/13/2019   10:30:44   (  -0.00,-137.16) (  -0.08,-136.81)   40.20                80
 05/15/2019   22:33:57   (   0.00,-137.10) (  -0.11,-137.58)   54.63                80
 05/16/2019   22:17:52   (   0.00,-137.09) (   0.89,-133.05)  460.19                80
 05/18/2019   10:39:42   (  -0.00,-137.09) (   0.26,-138.33)  140.19                80
 05/19/2019   10:18:17   (  -0.00,-137.08) (  -0.74,-133.79)  373.95                80