Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 3 12.  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)
 03/13/2018   12:45:09   (   0.06,-135.11) (  -0.18,-134.05)  121.57                80
 03/14/2018   12:33:38   (   0.06,-135.08) (  -0.85,-131.24)  439.14                80
 03/16/2018   01:06:32   (  -0.06,-135.03) (  -1.04,-139.11)  466.65                80
 03/17/2018   00:55:01   (  -0.06,-135.00) (  -0.38,-136.31)  149.45                80
 03/18/2018   00:46:09   (  -0.07,-134.96) (   0.28,-133.50)  167.62                80
 03/19/2018   00:34:38   (  -0.07,-134.93) (   0.94,-130.69)  484.50                80
 03/20/2018   13:04:51   (   0.06,-134.87) (   0.93,-138.56)  421.96                80
 03/21/2018   12:53:20   (   0.06,-134.83) (   0.25,-135.76)  105.55                80
 03/22/2018   12:44:27   (   0.07,-134.78) (  -0.37,-132.94)  210.74                80
 03/25/2018   01:03:11   (  -0.07,-134.66) (  -0.87,-138.01)  382.55                80
 03/26/2018   00:51:39   (  -0.07,-134.61) (  -0.20,-135.20)   66.96                80