Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 16.  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   06:30:07   (   0.01,-134.49) (  -0.02,-134.67)   19.44                80
 01/21/2018   18:28:18   (   0.00,-134.31) (   0.01,-134.21)   10.66                80
 01/24/2018   06:23:58   (  -0.00,-134.22) (   0.09,-133.82)   45.84                80
 01/25/2018   18:42:50   (   0.01,-134.08) (   0.96,-138.37)  489.47                80
 01/26/2018   18:24:50   (   0.00,-134.02) (  -0.15,-133.38)   72.78                80
 01/28/2018   06:41:09   (  -0.00,-133.97) (  -0.91,-137.97)  455.96                80
 01/29/2018   06:23:10   (   0.00,-133.90) (   0.20,-132.97)  105.83                80
 01/30/2018   18:39:21   (   0.01,-133.74) (   0.85,-137.53)  430.90                80