Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 4 25.  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)
 04/26/2018   12:42:24   (   0.05,-135.45) (  -0.88,-131.34)  468.81                80
 04/28/2018   01:12:49   (  -0.03,-135.48) (  -0.90,-139.27)  432.94                80
 04/29/2018   01:01:16   (  -0.03,-135.49) (  -0.26,-136.46)  110.63                80
 04/30/2018   00:52:24   (  -0.03,-135.49) (   0.39,-133.64)  211.52                80
 05/02/2018   13:10:57   (   0.01,-135.50) (   0.72,-138.68)  362.71                80
 05/03/2018   12:59:23   (   0.02,-135.50) (   0.13,-135.86)   41.14                80
 05/04/2018   12:50:31   (   0.02,-135.50) (  -0.53,-133.04)  280.52                80
 05/07/2018   01:09:22   (   0.00,-135.51) (  -0.60,-138.16)  301.86                80
 05/08/2018   01:00:30   (  -0.00,-135.51) (   0.06,-135.35)   19.48                80
 05/09/2018   00:48:56   (  -0.01,-135.51) (   0.66,-132.52)  340.44                80