Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 3 27.  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)
 03/28/2018   06:22:59   (   0.03,-134.51) (   0.37,-133.04)  168.85                80
 03/29/2018   18:39:10   (  -0.03,-134.46) (   0.69,-137.59)  357.03                80
 03/30/2018   18:21:10   (  -0.03,-134.41) (  -0.44,-132.60)  206.91                80
 04/01/2018   06:37:29   (   0.03,-134.31) (  -0.63,-137.19)  327.67                80
 04/02/2018   06:19:30   (   0.03,-134.26) (   0.50,-132.20)  235.95                80
 04/03/2018   18:35:40   (  -0.04,-134.20) (   0.55,-136.75)  290.69                80
 04/04/2018   18:17:41   (  -0.03,-134.15) (  -0.58,-131.76)  272.59                80
 04/06/2018   06:34:00   (   0.05,-134.04) (  -0.49,-136.35)  263.10                80
 04/07/2018   06:16:01   (   0.04,-133.98) (   0.64,-131.36)  299.75                80
 04/08/2018   18:32:11   (  -0.05,-133.91) (   0.41,-135.91)  228.07                80
 04/09/2018   18:14:11   (  -0.05,-133.85) (  -0.73,-130.92)  334.54                80