Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 10 21.  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)
 10/22/2018   06:14:33   (   0.31,-135.42) (   1.03,-132.24)  362.09                80
 10/23/2018   18:33:25   (  -0.31,-135.44) (   0.01,-136.80)  155.86                80
 10/24/2018   18:15:25   (  -0.31,-135.41) (  -1.11,-131.81)  411.09                80
 10/26/2018   06:34:24   (   0.31,-135.32) (   0.08,-136.40)  122.29                80
 10/27/2018   06:11:04   (   0.31,-135.29) (   1.15,-131.39)  443.38                80
 10/28/2018   18:29:56   (  -0.31,-135.28) (  -0.16,-135.96)   76.83                80
 10/29/2018   18:11:57   (  -0.30,-135.25) (  -1.29,-130.97)  488.98                80
 10/31/2018   06:30:55   (   0.30,-135.15) (   0.20,-135.54)   45.20                80
 11/02/2018   18:26:27   (  -0.30,-135.09) (  -0.28,-135.11)    2.70                80