Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 8 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 08/11/2018   18:47:06   (   0.04,-135.27) (   0.95,-139.26)  455.32                80
 08/12/2018   18:23:47   (   0.01,-135.25) (  -0.22,-134.28)  110.35                80
 08/14/2018   06:45:25   (  -0.05,-135.16) (  -0.86,-138.86)  421.76                80
 08/15/2018   06:22:05   (  -0.02,-135.13) (   0.25,-133.87)  143.91                80
 08/16/2018   18:43:34   (   0.06,-135.14) (   0.79,-138.42)  374.05                80
 08/17/2018   18:20:14   (   0.03,-135.11) (  -0.31,-133.42)  191.31                80
 08/19/2018   06:41:52   (  -0.08,-135.01) (  -0.76,-138.01)  341.64                80
 08/20/2018   06:18:32   (  -0.05,-134.98) (   0.40,-133.03)  223.43                80
 08/21/2018   18:40:01   (   0.09,-134.98) (   0.69,-137.57)  295.49                80
 08/22/2018   18:16:41   (   0.06,-134.94) (  -0.48,-132.58)  269.16                80
 08/24/2018   06:38:20   (  -0.11,-134.84) (  -0.60,-137.17)  264.85                80