Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 3 13.  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)
 03/15/2018   18:28:57   (   0.00,-135.05) (   0.03,-135.11)    7.11                80
 03/18/2018   06:29:57   (  -0.00,-134.95) (   0.04,-134.71)   27.60                80
 03/19/2018   18:46:08   (  -0.00,-134.91) (   0.98,-139.27)  497.23                80
 03/20/2018   18:28:08   (   0.00,-134.87) (  -0.15,-134.28)   67.74                80
 03/22/2018   06:44:28   (   0.00,-134.79) (  -0.91,-138.87)  464.62                80
 03/23/2018   06:26:28   (   0.00,-134.74) (   0.21,-133.87)   99.71                80
 03/24/2018   18:42:38   (  -0.01,-134.68) (   0.85,-138.42)  426.84                80
 03/25/2018   18:24:39   (  -0.01,-134.64) (  -0.28,-133.43)  137.03                80
 03/27/2018   06:40:58   (   0.01,-134.55) (  -0.79,-138.02)  396.69                80