Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2018   19:27:46   (   0.02,-135.12) (  -0.21,-134.01)  126.39                80
 01/31/2018   07:49:11   (  -0.02,-135.15) (  -0.86,-139.21)  460.08                80
 02/01/2018   19:15:36   (   0.03,-135.18) (  -0.85,-131.06)  468.66                80
 02/02/2018   07:37:01   (  -0.03,-135.21) (  -0.23,-136.26)  118.10                80
 02/04/2018   07:22:11   (  -0.03,-135.27) (   0.39,-133.30)  223.43                80
 02/04/2018   19:43:27   (   0.03,-135.26) (   0.71,-138.46)  363.98                80
 02/06/2018   19:31:18   (   0.03,-135.31) (   0.07,-135.52)   23.12                80
 02/08/2018   19:21:49   (   0.02,-135.36) (  -0.54,-132.57)  317.00                80
 02/09/2018   07:43:14   (  -0.02,-135.40) (  -0.56,-137.76)  269.88                80
 02/11/2018   07:28:27   (  -0.01,-135.44) (   0.15,-134.84)   68.97                80