Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 3 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 03/12/2018   18:33:08   (   0.00,-135.14) (   0.56,-137.52)  271.78                80
 03/13/2018   18:15:06   (   0.01,-135.11) (  -0.55,-132.52)  294.50                80
 03/15/2018   06:31:24   (  -0.00,-135.05) (  -0.45,-137.13)  235.98                80
 03/16/2018   06:13:23   (  -0.01,-135.02) (   0.65,-132.13)  330.04                80
 03/17/2018   18:29:31   (   0.01,-134.98) (   0.37,-136.69)  193.77                80
 03/18/2018   18:11:30   (   0.01,-134.95) (  -0.73,-131.69)  371.89                80
 03/20/2018   06:27:47   (  -0.01,-134.87) (  -0.32,-136.28)  159.74                80
 03/21/2018   06:09:46   (  -0.01,-134.83) (   0.78,-131.28)  405.39                80
 03/22/2018   18:25:54   (   0.00,-134.78) (   0.24,-135.83)  119.96                80
 03/23/2018   18:07:53   (   0.01,-134.74) (  -0.86,-130.84)  444.55                80
 03/25/2018   06:24:10   (   0.00,-134.65) (  -0.19,-135.43)   88.79                80