Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 6 2.  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)
 06/03/2018   06:36:13   (   0.17,-134.84) (  -0.16,-136.43)  181.03                80
 06/04/2018   06:12:52   (   0.18,-134.80) (   0.93,-131.43)  383.46                80
 06/05/2018   18:34:22   (  -0.18,-134.78) (   0.12,-135.99)  138.44                80
 06/06/2018   18:11:03   (  -0.19,-134.73) (  -1.03,-131.00)  425.65                80
 06/08/2018   06:32:41   (   0.18,-134.62) (  -0.03,-135.59)  110.55                80
 06/09/2018   06:09:21   (   0.19,-134.57) (   1.06,-130.59)  453.29                80
 06/10/2018   18:30:52   (  -0.18,-134.54) (  -0.06,-135.15)   69.61                80
 06/11/2018   18:07:32   (  -0.19,-134.49) (  -1.16,-130.15)  493.62                80
 06/13/2018   06:29:10   (   0.17,-134.35) (   0.10,-134.74)   44.14                80
 06/15/2018   18:27:20   (  -0.18,-134.25) (  -0.14,-134.30)    6.74                80