Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2016 6 21.  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)
 06/21/2016   06:13:18   (   0.13,-135.46) (   1.03,-131.53)  448.15                80
 06/22/2016   18:34:49   (  -0.12,-135.47) (   0.03,-136.08)   69.55                80
 06/25/2016   06:33:10   (   0.12,-135.49) (   0.11,-135.69)   22.16                80
 06/27/2016   18:28:41   (  -0.12,-135.50) (  -0.17,-135.25)   28.43                80
 06/29/2016   06:50:22   (   0.10,-135.51) (  -0.86,-139.84)  494.17                80
 06/30/2016   06:27:02   (   0.12,-135.51) (   0.26,-134.85)   74.41                80
 07/01/2016   18:48:32   (  -0.10,-135.49) (   0.79,-139.40)  445.80                80
 07/02/2016   18:25:13   (  -0.11,-135.49) (  -0.33,-134.41)  122.60                80
 07/04/2016   06:46:53   (   0.10,-135.49) (  -0.70,-139.00)  401.02                80