Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 17.  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)
 01/19/2018   06:30:06   (   0.01,-134.49) (  -0.04,-134.66)   19.35                80
 01/21/2018   18:25:38   (   0.00,-134.31) (  -0.03,-134.22)   10.29                80
 01/24/2018   06:23:58   (  -0.00,-134.22) (   0.06,-133.81)   46.04                80
 01/25/2018   18:42:49   (   0.01,-134.08) (   0.98,-138.37)  489.31                80
 01/26/2018   18:24:50   (   0.00,-134.02) (  -0.13,-133.37)   72.95                80
 01/28/2018   06:41:10   (  -0.00,-133.97) (  -0.88,-137.97)  455.77                80
 01/29/2018   06:23:10   (   0.00,-133.90) (   0.18,-132.97)  106.07                80
 01/30/2018   18:39:21   (   0.01,-133.75) (   0.87,-137.52)  430.67                80