Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 7 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)
 07/12/2017   06:25:51   (   0.11,-135.28) (   0.25,-134.72)   64.63                80
 07/13/2017   18:47:22   (  -0.09,-135.32) (   0.78,-139.28)  450.87                80
 07/14/2017   18:24:02   (  -0.11,-135.29) (  -0.36,-134.29)  115.40                80
 07/16/2017   06:45:41   (   0.08,-135.19) (  -0.76,-138.87)  418.92                80
 07/17/2017   06:22:21   (   0.10,-135.17) (   0.38,-133.88)  146.85                80
 07/18/2017   18:43:51   (  -0.07,-135.19) (   0.64,-138.44)  369.89                80
 07/19/2017   18:20:32   (  -0.09,-135.16) (  -0.50,-133.45)  195.39                80
 07/21/2017   06:42:10   (   0.06,-135.04) (  -0.61,-138.02)  340.34                80
 07/22/2017   06:18:51   (   0.09,-135.00) (   0.53,-133.04)  224.39                80
 07/23/2017   18:40:21   (  -0.06,-135.01) (   0.50,-137.59)  293.66                80