Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 29.  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)
 06/30/2018   18:14:11   (  -0.17,-135.19) (  -0.91,-131.84)  381.53                80
 07/02/2018   06:35:49   (   0.15,-135.21) (  -0.15,-136.43)  139.40                80
 07/03/2018   06:12:30   (   0.17,-135.24) (   1.01,-131.44)  432.13                80
 07/04/2018   18:34:00   (  -0.15,-135.29) (   0.03,-136.00)   80.82                80
 07/05/2018   18:10:41   (  -0.17,-135.32) (  -1.13,-131.01)  490.34                80
 07/07/2018   06:32:19   (   0.14,-135.33) (   0.08,-135.60)   31.51                80
 07/09/2018   18:27:50   (  -0.14,-135.39) (  -0.20,-135.17)   25.02                80
 07/11/2018   06:49:28   (   0.11,-135.39) (  -0.85,-139.76)  498.28                80
 07/12/2018   06:26:08   (   0.13,-135.40) (   0.25,-134.76)   71.50                80
 07/13/2018   18:47:38   (  -0.11,-135.43) (   0.78,-139.32)  443.89                80