Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 12 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)
 12/09/2018   17:56:10   (  -0.19,-128.58) (   0.26,-130.69)  239.93                80
 12/10/2018   17:38:08   (  -0.19,-128.59) (  -0.82,-125.69)  330.54                80
 12/12/2018   05:57:05   (   0.17,-128.60) (  -0.18,-130.29)  192.06                80
 12/13/2018   05:33:42   (   0.18,-128.60) (   0.90,-125.29)  377.19                80
 12/14/2018   17:52:30   (  -0.17,-128.61) (   0.13,-129.85)  141.98                80
 12/15/2018   17:34:28   (  -0.17,-128.61) (  -1.01,-124.86)  428.05                80
 12/17/2018   05:53:25   (   0.16,-128.63) (  -0.03,-129.45)   94.31                80
 12/18/2018   05:30:03   (   0.16,-128.62) (   1.11,-124.46)  474.34                80
 12/19/2018   17:48:50   (  -0.15,-128.61) (  -0.07,-129.02)   46.79                80
 12/22/2018   05:49:44   (   0.14,-128.61) (   0.12,-128.61)    2.77                80