Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 5 17.  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)
 05/18/2018   06:08:21   (   0.15,-135.34) (   1.05,-131.39)  450.49                80
 05/19/2018   18:27:10   (  -0.16,-135.32) (  -0.03,-135.95)   71.46                80
 05/20/2018   18:03:48   (  -0.16,-135.30) (  -1.11,-130.95)  495.04                80
 05/22/2018   06:22:46   (   0.16,-135.25) (   0.08,-135.55)   34.76                80
 05/24/2018   18:20:54   (  -0.17,-135.21) (  -0.20,-135.12)    9.82                80
 05/27/2018   06:21:50   (   0.17,-135.12) (   0.26,-134.72)   45.62                80
 05/28/2018   18:40:40   (  -0.16,-135.10) (   0.77,-139.28)  476.89                80
 05/29/2018   18:17:18   (  -0.17,-135.06) (  -0.32,-134.28)   88.80                80
 05/31/2018   06:38:55   (   0.17,-134.99) (  -0.71,-138.88)  442.74                80