Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 12 7.  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)
 12/08/2018   05:37:23   (   0.20,-128.56) (   0.76,-126.13)  277.65                80
 12/09/2018   17:56:10   (  -0.19,-128.58) (   0.27,-130.69)  239.89                80
 12/10/2018   17:38:08   (  -0.19,-128.59) (  -0.81,-125.69)  330.62                80
 12/12/2018   05:57:05   (   0.17,-128.60) (  -0.19,-130.29)  191.93                80
 12/13/2018   05:33:42   (   0.18,-128.60) (   0.89,-125.29)  377.35                80
 12/14/2018   17:52:30   (  -0.17,-128.61) (   0.14,-129.85)  141.78                80
 12/15/2018   17:34:28   (  -0.17,-128.62) (  -1.00,-124.86)  428.31                80
 12/17/2018   05:53:24   (   0.16,-128.63) (  -0.04,-129.45)   94.02                80
 12/18/2018   05:30:03   (   0.16,-128.62) (   1.10,-124.46)  474.68                80
 12/19/2018   17:48:50   (  -0.15,-128.61) (  -0.06,-129.02)   46.36                80