Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 3 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 03/12/2018   12:59:21   (   0.06,-135.14) (   0.47,-136.86)  196.07                80
 03/13/2018   12:45:10   (   0.06,-135.11) (  -0.19,-134.05)  121.64                80
 03/14/2018   12:33:37   (   0.06,-135.08) (  -0.80,-131.23)  439.23                80
 03/16/2018   01:06:32   (  -0.06,-135.03) (  -1.02,-139.12)  466.61                80
 03/17/2018   00:55:01   (  -0.06,-135.00) (  -0.36,-136.31)  149.39                80
 03/18/2018   00:46:09   (  -0.07,-134.97) (   0.29,-133.50)  167.70                80
 03/19/2018   00:34:37   (  -0.07,-134.93) (   0.90,-130.68)  484.59                80
 03/20/2018   13:04:51   (   0.07,-134.87) (   0.92,-138.57)  421.76                80
 03/21/2018   12:53:19   (   0.07,-134.83) (   0.30,-135.75)  105.32                80
 03/22/2018   12:44:27   (   0.07,-134.79) (  -0.38,-132.94)  210.98                80
 03/25/2018   01:03:11   (  -0.07,-134.67) (  -0.86,-138.01)  382.36                80