Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 26.  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)
 01/26/2018   18:24:53   (   0.00,-134.99) (  -0.32,-133.42)  179.23                80
 01/28/2018   06:43:53   (  -0.01,-135.06) (  -0.69,-138.02)  337.52                80
 01/29/2018   06:20:35   (  -0.00,-135.09) (   0.48,-133.03)  234.76                80
 01/30/2018   18:39:26   (   0.01,-135.12) (   0.57,-137.59)  281.40                80
 01/31/2018   18:21:27   (   0.02,-135.15) (  -0.54,-132.60)  291.17                80
 02/02/2018   06:40:27   (  -0.03,-135.21) (  -0.46,-137.20)  225.96                80
 02/03/2018   06:17:07   (  -0.03,-135.24) (   0.66,-132.20)  346.01                80
 02/04/2018   18:36:00   (   0.03,-135.26) (   0.34,-136.77)  171.12                80
 02/05/2018   18:18:00   (   0.02,-135.29) (  -0.77,-131.78)  400.96                80
 02/07/2018   06:37:00   (  -0.02,-135.35) (  -0.28,-136.36)  116.63                80
 02/08/2018   06:13:41   (  -0.02,-135.37) (   0.90,-131.38)  454.86                80