Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 9 17.  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)
 09/18/2018   06:20:46   (   0.24,-135.41) (   0.78,-133.08)  265.99                80
 09/19/2018   18:36:56   (  -0.26,-135.52) (   0.21,-137.65)  243.27                80
 09/20/2018   18:18:56   (  -0.25,-135.54) (  -0.90,-132.66)  328.77                80
 09/22/2018   06:35:14   (   0.27,-135.50) (  -0.14,-137.25)  199.75                80
 09/23/2018   06:17:13   (   0.26,-135.51) (   0.98,-132.25)  371.47                80
 09/24/2018   18:33:24   (  -0.28,-135.60) (   0.02,-136.82)  139.23                80
 09/25/2018   18:15:23   (  -0.26,-135.62) (  -1.10,-131.82)  432.21                80
 09/27/2018   06:34:22   (   0.29,-135.57) (   0.12,-136.43)   96.64                80
 09/28/2018   06:13:41   (   0.27,-135.58) (   1.18,-131.42)  473.80                80
 09/29/2018   18:29:52   (  -0.29,-135.65) (  -0.24,-136.00)   38.90                80