Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2018 4 10.  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)
 04/11/2018   18:14:21   (  -0.06,-135.16) (  -0.62,-132.55)  296.90                80
 04/13/2018   06:30:41   (   0.06,-135.21) (  -0.36,-137.16)  222.19                80
 04/14/2018   06:12:39   (   0.06,-135.24) (   0.72,-132.16)  350.00                80
 04/15/2018   18:28:50   (  -0.07,-135.27) (   0.23,-136.74)  166.62                80
 04/16/2018   18:10:48   (  -0.06,-135.29) (  -0.84,-131.74)  405.00                80
 04/18/2018   06:27:06   (   0.07,-135.33) (  -0.18,-136.34)  115.61                80
 04/19/2018   06:09:06   (   0.07,-135.34) (   0.96,-131.35)  455.49                80
 04/20/2018   18:25:15   (  -0.08,-135.36) (   0.06,-135.91)   62.92                80
 04/23/2018   06:23:33   (   0.09,-135.39) (   0.06,-135.52)   14.53                80