Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 4 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 04/13/2018   06:30:41   (   0.07,-135.21) (  -0.37,-137.16)  221.83                80
 04/14/2018   06:12:40   (   0.06,-135.24) (   0.77,-132.17)  350.52                80
 04/15/2018   18:28:49   (  -0.07,-135.28) (   0.25,-136.74)  165.21                80
 04/16/2018   18:10:48   (  -0.06,-135.31) (  -0.83,-131.73)  406.52                80
 04/18/2018   06:27:07   (   0.07,-135.34) (  -0.13,-136.35)  114.55                80
 04/19/2018   06:09:06   (   0.07,-135.36) (   0.94,-131.34)  456.68                80
 04/20/2018   18:27:56   (  -0.08,-135.38) (   0.01,-135.92)   60.78                80
 04/23/2018   06:23:33   (   0.09,-135.41) (   0.05,-135.52)   13.00                80
 04/25/2018   18:24:22   (  -0.10,-135.44) (  -0.17,-135.09)   39.65                80