Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 12 9.  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)
 12/10/2018   17:38:08   (  -0.19,-128.59) (  -0.85,-125.70)  330.53                80
 12/12/2018   05:57:05   (   0.17,-128.60) (  -0.20,-130.29)  192.14                80
 12/13/2018   05:33:42   (   0.18,-128.60) (   0.88,-125.29)  377.08                80
 12/14/2018   17:52:30   (  -0.17,-128.61) (   0.09,-129.86)  142.12                80
 12/15/2018   17:34:28   (  -0.17,-128.61) (  -0.99,-124.85)  427.88                80
 12/17/2018   05:53:24   (   0.16,-128.62) (  -0.05,-129.45)   94.59                80
 12/18/2018   05:30:03   (   0.16,-128.62) (   1.09,-124.46)  474.07                80
 12/19/2018   17:48:50   (  -0.15,-128.60) (  -0.06,-129.02)   47.05                80
 12/22/2018   05:47:05   (   0.15,-128.61) (   0.17,-128.62)    2.88                80