Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 5 11.  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)
 05/12/2018   06:29:56   (   0.14,-135.43) (  -0.24,-137.22)  203.23                80
 05/13/2018   06:11:55   (   0.14,-135.42) (   0.84,-132.21)  364.80                80
 05/14/2018   18:30:44   (  -0.14,-135.42) (   0.19,-136.78)  155.60                80
 05/15/2018   18:07:24   (  -0.14,-135.40) (  -0.96,-131.79)  411.67                80
 05/17/2018   06:26:21   (   0.15,-135.35) (  -0.08,-136.38)  117.73                80
 05/18/2018   06:08:20   (   0.15,-135.33) (   1.00,-131.38)  449.07                80
 05/19/2018   18:27:10   (  -0.16,-135.31) (  -0.04,-135.96)   72.84                80
 05/20/2018   18:03:49   (  -0.16,-135.29) (  -1.12,-130.96)  493.44                80
 05/22/2018   06:22:46   (   0.16,-135.23) (   0.09,-135.55)   37.12                80
 05/24/2018   18:20:55   (  -0.17,-135.18) (  -0.21,-135.13)    7.65                80