Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 4 8.  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)
 04/09/2018   06:16:14   (   0.05,-135.09) (   0.55,-132.99)  240.07                80
 04/10/2018   18:32:23   (  -0.06,-135.13) (   0.46,-137.56)  275.61                80
 04/11/2018   18:14:21   (  -0.06,-135.16) (  -0.61,-132.55)  296.77                80
 04/13/2018   06:30:41   (   0.06,-135.21) (  -0.36,-137.16)  222.41                80
 04/14/2018   06:12:39   (   0.06,-135.24) (   0.72,-132.16)  349.76                80
 04/15/2018   18:28:49   (  -0.07,-135.27) (   0.24,-136.74)  166.86                80
 04/16/2018   18:10:48   (  -0.06,-135.29) (  -0.84,-131.73)  404.75                80
 04/18/2018   06:27:07   (   0.07,-135.32) (  -0.13,-136.35)  115.94                80
 04/19/2018   06:09:06   (   0.07,-135.34) (   0.95,-131.35)  455.13                80
 04/20/2018   18:25:15   (  -0.08,-135.36) (   0.07,-135.91)   63.31                80