Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 5 15.  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)
 05/16/2018   18:48:24   (  -0.15,-135.39) (   0.73,-139.34)  450.85                80
 05/17/2018   18:25:04   (  -0.15,-135.37) (  -0.35,-134.34)  116.04                80
 05/19/2018   06:44:04   (   0.15,-135.31) (  -0.63,-138.95)  413.68                80
 05/20/2018   06:26:04   (   0.16,-135.29) (   0.46,-133.95)  152.94                80
 05/21/2018   18:44:54   (  -0.16,-135.28) (   0.58,-138.51)  368.62                80
 05/22/2018   18:21:35   (  -0.16,-135.25) (  -0.56,-133.52)  197.68                80
 05/24/2018   06:40:34   (   0.16,-135.19) (  -0.47,-138.11)  332.58                80
 05/25/2018   06:22:33   (   0.17,-135.17) (   0.62,-133.11)  233.79                80
 05/26/2018   18:41:24   (  -0.16,-135.15) (   0.43,-137.67)  288.06                80
 05/27/2018   18:18:04   (  -0.17,-135.12) (  -0.72,-132.68)  277.83                80
 05/29/2018   06:39:43   (   0.16,-135.05) (  -0.36,-137.26)  253.31                80