Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 12 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)
 12/13/2018   05:33:42   (   0.18,-128.60) (   0.90,-125.29)  376.93                80
 12/14/2018   17:52:30   (  -0.17,-128.61) (   0.13,-129.85)  142.11                80
 12/15/2018   17:34:28   (  -0.17,-128.61) (  -1.01,-124.86)  427.86                80
 12/17/2018   05:53:24   (   0.16,-128.62) (  -0.04,-129.45)   94.85                80
 12/18/2018   05:30:03   (   0.16,-128.62) (   1.10,-124.46)  473.73                80
 12/19/2018   17:48:50   (  -0.15,-128.60) (  -0.07,-129.02)   47.26                80
 12/22/2018   05:47:05   (   0.15,-128.60) (   0.17,-128.62)    3.36                80
 12/24/2018   17:47:50   (  -0.13,-128.55) (  -0.21,-128.18)   42.86                80
 12/26/2018   06:06:46   (   0.12,-128.57) (  -0.82,-132.77)  479.27                80