Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 4 10.  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)
 04/10/2018   18:32:23   (  -0.06,-135.13) (   0.48,-137.55)  275.52                80
 04/11/2018   18:14:22   (  -0.06,-135.16) (  -0.66,-132.56)  296.87                80
 04/13/2018   06:30:40   (   0.06,-135.21) (  -0.37,-137.16)  222.30                80
 04/14/2018   06:12:40   (   0.06,-135.24) (   0.76,-132.17)  349.88                80
 04/15/2018   18:28:49   (  -0.07,-135.27) (   0.25,-136.73)  166.68                80
 04/16/2018   18:10:49   (  -0.06,-135.29) (  -0.88,-131.74)  404.92                80
 04/18/2018   06:27:07   (   0.07,-135.33) (  -0.14,-136.34)  115.74                80
 04/19/2018   06:09:06   (   0.07,-135.34) (   0.93,-131.34)  455.32                80
 04/20/2018   18:25:16   (  -0.08,-135.36) (   0.03,-135.92)   63.03                80
 04/23/2018   06:23:33   (   0.09,-135.39) (   0.04,-135.52)   15.07                80