Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2017 8 20.  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)
 08/21/2017   18:37:23   (  -0.12,-135.10) (   0.41,-137.61)  285.93                80
 08/22/2017   18:19:22   (  -0.11,-135.11) (  -0.68,-132.61)  284.88                80
 08/24/2017   06:35:41   (   0.14,-135.02) (  -0.34,-137.21)  249.77                80
 08/25/2017   06:17:41   (   0.12,-135.02) (   0.76,-132.21)  320.50                80
 08/26/2017   18:33:52   (  -0.15,-135.13) (   0.22,-136.78)  187.87                80
 08/27/2017   18:15:52   (  -0.13,-135.14) (  -0.87,-131.78)  382.50                80
 08/29/2017   06:32:11   (   0.16,-135.04) (  -0.14,-136.38)  152.43                80
 08/30/2017   06:14:11   (   0.14,-135.04) (   0.96,-131.38)  417.11                80
 08/31/2017   18:30:22   (  -0.17,-135.14) (   0.03,-135.95)   92.90                80
 09/01/2017   18:12:21   (  -0.15,-135.14) (  -1.07,-130.95)  476.67                80