Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 4 15.  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)
 04/15/2018   18:28:50   (  -0.07,-135.27) (   0.23,-136.74)  166.25                80
 04/16/2018   18:10:48   (  -0.06,-135.30) (  -0.84,-131.73)  405.50                80
 04/18/2018   06:27:07   (   0.07,-135.34) (  -0.12,-136.35)  114.59                80
 04/19/2018   06:09:06   (   0.07,-135.35) (   0.96,-131.35)  456.64                80
 04/20/2018   18:25:15   (  -0.08,-135.37) (   0.06,-135.91)   61.84                80
 04/23/2018   06:23:33   (   0.09,-135.41) (   0.06,-135.52)   12.81                80
 04/25/2018   18:24:22   (  -0.10,-135.43) (  -0.18,-135.09)   38.60                80
 04/27/2018   06:40:40   (   0.10,-135.45) (  -0.82,-139.70)  483.42                80
 04/28/2018   06:22:39   (   0.10,-135.46) (   0.26,-134.70)   86.87                80