Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 7 11.  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) (   0.24,-134.72)   64.65                80
 07/13/2017   18:47:21   (  -0.09,-135.32) (   0.79,-139.27)  450.83                80
 07/14/2017   18:24:02   (  -0.11,-135.29) (  -0.35,-134.29)  115.40                80
 07/16/2017   06:45:41   (   0.08,-135.19) (  -0.71,-138.88)  418.90                80
 07/17/2017   06:22:21   (   0.10,-135.17) (   0.37,-133.87)  146.89                80
 07/18/2017   18:43:51   (  -0.07,-135.19) (   0.65,-138.43)  369.86                80
 07/19/2017   18:20:32   (  -0.09,-135.16) (  -0.49,-133.44)  195.40                80
 07/21/2017   06:42:10   (   0.06,-135.04) (  -0.63,-138.02)  340.32                80
 07/22/2017   06:18:50   (   0.09,-135.00) (   0.52,-133.03)  224.42                80
 07/23/2017   18:40:21   (  -0.06,-135.01) (   0.51,-137.59)  293.62                80
 07/24/2017   18:17:01   (  -0.08,-134.98) (  -0.64,-132.60)  270.98                80