Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 5 13.  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)
 05/14/2018   06:47:34   (   0.14,-135.41) (  -0.84,-139.78)  498.16                80
 05/15/2018   06:29:34   (   0.14,-135.39) (   0.31,-134.79)   69.52                80
 05/16/2018   18:48:24   (  -0.15,-135.39) (   0.73,-139.34)  451.01                80
 05/17/2018   18:25:04   (  -0.15,-135.36) (  -0.35,-134.34)  115.82                80
 05/19/2018   06:44:04   (   0.15,-135.31) (  -0.63,-138.95)  414.11                80
 05/20/2018   06:26:04   (   0.16,-135.29) (   0.46,-133.95)  152.45                80
 05/21/2018   18:44:54   (  -0.16,-135.27) (   0.58,-138.51)  369.09                80
 05/22/2018   18:21:35   (  -0.16,-135.25) (  -0.56,-133.52)  197.15                80
 05/24/2018   06:40:34   (   0.16,-135.18) (  -0.47,-138.11)  333.31                80
 05/25/2018   06:22:33   (   0.17,-135.16) (   0.62,-133.11)  233.01                80
 05/26/2018   18:41:24   (  -0.16,-135.14) (   0.43,-137.67)  288.84                80
 05/27/2018   18:18:04   (  -0.17,-135.11) (  -0.72,-132.68)  277.00                80