Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 4 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)
 04/27/2018   18:39:01   (  -0.11,-135.47) (   0.40,-137.66)  250.35                80
 04/28/2018   18:21:02   (  -0.10,-135.48) (  -0.74,-132.68)  319.77                80
 04/30/2018   06:37:22   (   0.11,-135.49) (  -0.27,-137.28)  203.67                80
 05/01/2018   06:19:22   (   0.11,-135.49) (   0.81,-132.28)  366.15                80
 05/02/2018   18:35:33   (  -0.12,-135.50) (   0.16,-136.85)  152.51                80
 05/03/2018   18:17:33   (  -0.12,-135.51) (  -0.92,-131.84)  416.81                80
 05/05/2018   06:33:53   (   0.13,-135.50) (  -0.09,-136.45)  107.83                80
 05/06/2018   06:15:53   (   0.13,-135.50) (   1.05,-131.46)  461.21                80
 05/07/2018   18:32:04   (  -0.14,-135.50) (  -0.02,-136.02)   58.41                80
 05/10/2018   06:30:23   (   0.14,-135.49) (   0.11,-135.62)   15.26                80