Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2018   06:35:50   (   0.15,-135.21) (  -0.11,-136.43)  139.37                80
 07/03/2018   06:12:30   (   0.17,-135.23) (   0.99,-131.44)  432.15                80
 07/04/2018   18:34:01   (  -0.15,-135.29) (  -0.01,-136.01)   80.67                80
 07/05/2018   18:10:40   (  -0.17,-135.32) (  -1.11,-131.01)  490.47                80
 07/07/2018   06:32:19   (   0.14,-135.33) (   0.06,-135.60)   31.64                80
 07/09/2018   18:27:50   (  -0.14,-135.39) (  -0.18,-135.17)   25.14                80
 07/11/2018   06:49:28   (   0.11,-135.39) (  -0.87,-139.76)  498.27                80
 07/12/2018   06:26:08   (   0.13,-135.40) (   0.29,-134.77)   71.47                80
 07/13/2018   18:47:39   (  -0.11,-135.43) (   0.74,-139.33)  443.72                80
 07/14/2018   18:24:18   (  -0.13,-135.44) (  -0.36,-134.33)  125.61                80