Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 3 9.  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)
 03/10/2018   18:32:25   (   0.01,-135.20) (   0.19,-135.94)   84.88                80
 03/11/2018   18:14:26   (   0.01,-135.18) (  -0.93,-130.95)  481.41                80
 03/13/2018   06:30:45   (  -0.01,-135.12) (  -0.12,-135.54)   48.63                80
 03/15/2018   18:28:57   (   0.01,-135.05) (   0.02,-135.11)    6.31                80
 03/18/2018   06:29:57   (  -0.01,-134.96) (   0.04,-134.71)   28.42                80
 03/19/2018   18:46:08   (   0.01,-134.91) (   0.98,-139.27)  496.17                80
 03/20/2018   18:28:08   (   0.01,-134.88) (  -0.15,-134.28)   68.91                80
 03/22/2018   06:44:28   (  -0.00,-134.80) (  -0.91,-138.87)  463.39                80
 03/23/2018   06:26:28   (  -0.01,-134.76) (   0.21,-133.87)  101.03                80