Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 3 10.  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,-135.15) (   0.48,-136.86)  195.84                80
 03/13/2018   12:45:09   (   0.06,-135.12) (  -0.19,-134.05)  121.96                80
 03/14/2018   12:33:38   (   0.06,-135.09) (  -0.86,-131.24)  439.63                80
 03/16/2018   01:06:32   (  -0.06,-135.04) (  -1.03,-139.12)  466.12                80
 03/17/2018   00:55:01   (  -0.07,-135.01) (  -0.37,-136.31)  148.81                80
 03/18/2018   00:46:09   (  -0.07,-134.97) (   0.29,-133.50)  168.35                80
 03/19/2018   00:34:38   (  -0.07,-134.94) (   0.95,-130.69)  485.34                80
 03/20/2018   13:04:51   (   0.07,-134.88) (   0.92,-138.57)  420.83                80
 03/21/2018   12:56:00   (   0.07,-134.84) (   0.25,-135.76)  104.34                80
 03/22/2018   12:41:47   (   0.07,-134.80) (  -0.37,-132.94)  212.06                80