Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 6 16.  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)
 06/17/2018   18:26:16   (  -0.18,-134.69) (   0.09,-135.94)  142.48                80
 06/18/2018   18:02:55   (  -0.19,-134.74) (  -1.01,-130.95)  431.26                80
 06/20/2018   06:24:33   (   0.18,-134.81) (   0.03,-135.55)   84.76                80
 06/21/2018   06:01:11   (   0.19,-134.85) (   1.12,-130.55)  489.00                80
 06/22/2018   18:22:41   (  -0.18,-134.92) (  -0.13,-135.12)   23.31                80
 06/25/2018   06:18:18   (   0.17,-135.02) (   0.25,-134.73)   33.23                80
 06/26/2018   18:39:46   (  -0.16,-135.08) (   0.80,-139.29)  479.67                80
 06/27/2018   18:16:25   (  -0.17,-135.12) (  -0.36,-134.30)   93.03                80
 06/29/2018   06:38:03   (   0.15,-135.17) (  -0.68,-138.90)  424.83                80
 06/30/2018   06:14:42   (   0.18,-135.20) (   0.47,-133.91)  147.63                80