Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 9 26.  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)
 09/27/2018   06:31:52   (   0.29,-135.57) (   0.08,-136.43)   98.50                80
 09/28/2018   06:13:52   (   0.27,-135.57) (   1.18,-131.43)  471.86                80
 09/29/2018   18:30:05   (  -0.29,-135.66) (  -0.19,-136.00)   39.06                80
 10/02/2018   06:28:25   (   0.29,-135.60) (   0.26,-135.59)    3.17                80
 10/04/2018   18:29:19   (  -0.30,-135.66) (  -0.43,-135.18)   56.11                80
 10/06/2018   06:48:20   (   0.31,-135.60) (  -0.59,-139.77)  474.71                80
 10/07/2018   06:24:59   (   0.30,-135.59) (   0.46,-134.76)   94.07                80
 10/08/2018   18:43:52   (  -0.32,-135.64) (   0.49,-139.34)  420.68                80
 10/09/2018   18:25:53   (  -0.31,-135.64) (  -0.62,-134.34)  148.52                80