Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 4 22.  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)
 04/23/2018   06:23:33   (   0.09,-135.42) (   0.07,-135.52)   11.55                80
 04/25/2018   18:24:22   (  -0.10,-135.45) (  -0.19,-135.10)   40.49                80
 04/27/2018   06:40:40   (   0.11,-135.47) (  -0.82,-139.70)  481.34                80
 04/28/2018   06:22:39   (   0.10,-135.48) (   0.26,-134.70)   89.12                80
 04/29/2018   18:38:48   (  -0.11,-135.49) (   0.76,-139.26)  429.89                80
 04/30/2018   18:20:48   (  -0.11,-135.50) (  -0.38,-134.27)  140.13                80
 05/02/2018   06:37:06   (   0.12,-135.51) (  -0.62,-138.87)  382.66                80
 05/03/2018   06:19:05   (   0.12,-135.52) (   0.46,-133.87)  187.03                80
 05/04/2018   18:37:55   (  -0.13,-135.52) (   0.51,-138.45)  333.13                80
 05/05/2018   18:17:13   (  -0.13,-135.52) (  -0.58,-133.44)  236.10                80