Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 7 1.  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   06:35:49   (   0.15,-135.21) (  -0.14,-136.43)  139.36                80
 07/03/2018   06:12:30   (   0.17,-135.24) (   1.02,-131.44)  432.17                80
 07/04/2018   18:34:00   (  -0.15,-135.30) (   0.02,-136.00)   80.56                80
 07/05/2018   18:10:41   (  -0.17,-135.32) (  -1.13,-131.01)  490.58                80
 07/07/2018   06:32:19   (   0.14,-135.33) (   0.08,-135.60)   31.46                80
 07/09/2018   18:27:50   (  -0.14,-135.39) (  -0.20,-135.17)   25.33                80
 07/11/2018   06:49:28   (   0.11,-135.39) (  -0.85,-139.76)  498.24                80
 07/12/2018   06:26:08   (   0.13,-135.40) (   0.25,-134.76)   71.53                80
 07/13/2018   18:47:38   (  -0.11,-135.43) (   0.78,-139.32)  443.58                80
 07/14/2018   18:24:19   (  -0.13,-135.44) (  -0.38,-134.34)  125.74                80