Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 12 9.  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)
 12/09/2017   06:19:56   (   0.14,-135.41) (   0.49,-133.84)  179.51                80
 12/10/2017   18:38:46   (  -0.13,-135.39) (   0.53,-138.40)  343.08                80
 12/11/2017   18:20:47   (  -0.13,-135.40) (  -0.60,-133.41)  226.69                80
 12/13/2017   06:39:46   (   0.12,-135.44) (  -0.47,-138.01)  292.31                80
 12/14/2017   06:16:27   (   0.13,-135.45) (   0.65,-133.02)  276.37                80
 12/15/2017   18:35:18   (  -0.12,-135.41) (   0.39,-137.58)  248.20                80
 12/16/2017   18:17:20   (  -0.12,-135.41) (  -0.75,-132.60)  320.55                80
 12/18/2017   06:36:21   (   0.11,-135.45) (  -0.26,-137.21)  199.50                80
 12/19/2017   06:13:01   (   0.11,-135.45) (   0.80,-132.21)  368.13                80
 12/20/2017   18:31:55   (  -0.10,-135.39) (   0.20,-136.79)  158.70                80
 12/21/2017   18:13:56   (  -0.10,-135.39) (  -0.91,-131.80)  408.96                80