Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2016 4 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2016   19:31:20   (  -0.05,-135.41) (  -0.03,-135.58)   19.26                80
 04/23/2016   19:21:51   (  -0.06,-135.40) (  -0.63,-132.63)  314.88                80
 04/24/2016   07:43:16   (   0.06,-135.37) (  -0.45,-137.82)  278.41                80
 04/26/2016   07:28:27   (   0.06,-135.36) (   0.15,-134.87)   54.63                80
 04/28/2016   07:16:19   (   0.07,-135.33) (   0.82,-131.94)  386.91                80
 04/28/2016   19:37:35   (  -0.07,-135.34) (   0.31,-137.09)  198.62                80
 04/30/2016   19:28:06   (  -0.08,-135.31) (  -0.31,-134.14)  132.98                80
 05/01/2016   07:49:31   (   0.08,-135.29) (  -0.77,-139.34)  460.21                80
 05/02/2016   19:15:57   (  -0.08,-135.28) (  -0.92,-131.19)  464.07                80
 05/03/2016   07:37:22   (   0.08,-135.25) (  -0.15,-136.39)  129.31                80