Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 9 18.  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)
 09/19/2018   18:36:56   (  -0.26,-135.52) (   0.21,-137.65)  243.24                80
 09/20/2018   18:18:56   (  -0.25,-135.54) (  -0.91,-132.66)  328.79                80
 09/22/2018   06:35:14   (   0.27,-135.50) (  -0.14,-137.25)  199.92                80
 09/23/2018   06:17:13   (   0.26,-135.51) (   0.98,-132.25)  371.28                80
 09/24/2018   18:33:24   (  -0.28,-135.60) (   0.01,-136.82)  139.32                80
 09/25/2018   18:15:23   (  -0.26,-135.62) (  -1.10,-131.82)  432.08                80
 09/27/2018   06:34:23   (   0.29,-135.57) (   0.13,-136.43)   96.96                80
 09/28/2018   06:13:41   (   0.27,-135.58) (   1.19,-131.42)  473.46                80
 09/29/2018   18:29:52   (  -0.29,-135.65) (  -0.24,-136.00)   39.18                80
 10/02/2018   06:28:09   (   0.29,-135.60) (   0.27,-135.58)    2.70                80