Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 9 19.  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)
 09/20/2018   18:18:57   (  -0.25,-135.54) (  -0.91,-132.66)  328.38                80
 09/22/2018   06:35:17   (   0.27,-135.50) (  -0.14,-137.25)  200.60                80
 09/23/2018   06:17:18   (   0.26,-135.51) (   0.96,-132.26)  370.42                80
 09/24/2018   18:33:30   (  -0.28,-135.60) (   0.02,-136.82)  140.02                80
 09/25/2018   18:15:32   (  -0.26,-135.62) (  -1.14,-131.84)  431.22                80
 09/27/2018   06:31:52   (   0.29,-135.57) (   0.10,-136.43)   98.05                80
 09/28/2018   06:13:53   (   0.27,-135.58) (   1.21,-131.44)  472.16                80
 09/29/2018   18:30:05   (  -0.29,-135.65) (  -0.21,-136.00)   40.21                80
 10/02/2018   06:29:42   (   0.29,-135.60) (   0.29,-135.60)    0.19                 4