Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 7 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/07/2018   07:17:28   (   0.09,-135.33) (   0.75,-132.14)  361.84                80
 07/07/2018   19:41:24   (  -0.06,-135.37) (   0.33,-137.31)  219.69                80
 07/09/2018   19:26:33   (  -0.07,-135.41) (  -0.31,-134.35)  120.07                80
 07/10/2018   07:50:35   (   0.04,-135.38) (  -0.86,-139.53)  471.81                80
 07/11/2018   19:14:22   (  -0.08,-135.43) (  -0.96,-131.40)  458.89                80
 07/12/2018   07:38:24   (   0.04,-135.41) (  -0.21,-136.58)  133.16                80
 07/14/2018   07:23:34   (   0.06,-135.43) (   0.44,-133.63)  204.73                80
 07/14/2018   19:47:28   (  -0.02,-135.46) (   0.70,-138.78)  377.32                80
 07/16/2018   19:35:17   (  -0.03,-135.48) (   0.04,-135.83)   39.75                80
 07/18/2018   19:20:26   (  -0.05,-135.49) (  -0.61,-132.88)  297.59                80
 07/19/2018   07:44:29   (   0.01,-135.47) (  -0.54,-138.06)  294.71                80