Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 9 5.  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)
 09/08/2017   06:25:10   (   0.20,-134.93) (   0.23,-134.71)   24.42                80
 09/09/2017   18:44:01   (  -0.23,-135.00) (   0.75,-139.28)  488.71                80
 09/10/2017   18:26:00   (  -0.21,-134.98) (  -0.35,-134.28)   79.23                80
 09/12/2017   06:42:20   (   0.23,-134.86) (  -0.64,-138.89)  458.24                80
 09/13/2017   06:24:19   (   0.22,-134.83) (   0.46,-133.89)  108.54                80
 09/14/2017   18:40:30   (  -0.24,-134.88) (   0.59,-138.44)  406.77                80
 09/15/2017   18:22:29   (  -0.22,-134.86) (  -0.51,-133.45)  160.26                80
 09/17/2017   06:41:28   (   0.25,-134.73) (  -0.47,-138.05)  377.46                80
 09/18/2017   06:18:27   (   0.23,-134.70) (   0.57,-133.04)  188.69                60
 09/19/2017   18:36:58   (  -0.25,-134.73) (   0.41,-137.61)  327.90                80