Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 4.  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)
 01/04/2018   06:40:29   (   0.04,-135.11) (  -0.45,-137.18)  237.67                80
 01/05/2018   06:17:11   (   0.05,-135.07) (   0.72,-132.20)  327.96                80
 01/06/2018   18:36:01   (  -0.04,-134.98) (   0.37,-136.75)  201.27                80
 01/07/2018   18:18:01   (  -0.04,-134.95) (  -0.73,-131.75)  364.55                80
 01/09/2018   06:37:02   (   0.03,-134.95) (  -0.31,-136.34)  159.40                80
 01/10/2018   06:13:43   (   0.04,-134.92) (   0.86,-131.36)  405.85                80
 01/11/2018   18:32:33   (  -0.03,-134.82) (   0.23,-135.91)  124.55                80
 01/12/2018   18:14:34   (  -0.03,-134.78) (  -0.87,-130.91)  440.65                80
 01/14/2018   06:33:34   (   0.03,-134.77) (  -0.16,-135.51)   84.05                80
 01/15/2018   06:10:15   (   0.03,-134.73) (   0.95,-130.51)  480.52                80
 01/16/2018   18:29:06   (  -0.03,-134.62) (   0.09,-135.07)   51.32                80