Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 1 25.  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)
 01/25/2018   18:42:53   (   0.01,-134.96) (   0.78,-138.41)  393.87                80
 01/26/2018   18:24:53   (   0.00,-134.99) (  -0.33,-133.42)  179.12                80
 01/28/2018   06:43:53   (  -0.01,-135.06) (  -0.68,-138.02)  337.46                80
 01/29/2018   06:20:34   (  -0.00,-135.09) (   0.43,-133.02)  234.77                80
 01/30/2018   18:39:26   (   0.01,-135.12) (   0.56,-137.59)  281.66                80
 01/31/2018   18:21:27   (   0.02,-135.15) (  -0.55,-132.60)  290.87                80
 02/02/2018   06:40:27   (  -0.03,-135.21) (  -0.45,-137.20)  226.12                80
 02/03/2018   06:17:08   (  -0.03,-135.23) (   0.67,-132.20)  345.83                80
 02/04/2018   18:35:59   (   0.03,-135.26) (   0.39,-136.76)  171.58                80
 02/05/2018   18:18:00   (   0.02,-135.29) (  -0.79,-131.78)  400.47                80
 02/07/2018   06:37:00   (  -0.02,-135.34) (  -0.27,-136.37)  116.96                80
 02/08/2018   06:13:40   (  -0.02,-135.36) (   0.85,-131.37)  454.46                80