Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 4 19.  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)
 04/20/2018   18:25:16   (  -0.08,-135.38) (   0.01,-135.92)   61.16                80
 04/23/2018   06:23:33   (   0.09,-135.42) (   0.05,-135.52)   11.74                80
 04/25/2018   18:24:22   (  -0.10,-135.45) (  -0.17,-135.09)   40.20                80
 04/27/2018   06:40:40   (   0.11,-135.47) (  -0.84,-139.69)  481.29                80
 04/28/2018   06:22:39   (   0.10,-135.48) (   0.30,-134.70)   89.19                80
 04/29/2018   18:38:49   (  -0.11,-135.49) (   0.73,-139.27)  430.19                80
 04/30/2018   18:20:47   (  -0.11,-135.50) (  -0.35,-134.26)  139.84                80
 05/02/2018   06:37:06   (   0.12,-135.51) (  -0.65,-138.87)  382.68                80
 05/03/2018   06:19:05   (   0.12,-135.52) (   0.50,-133.88)  187.01                80