Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 5 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/25/2018   07:38:14   (   0.15,-135.16) (  -0.14,-136.53)  156.17                80
 05/27/2018   07:23:23   (   0.15,-135.10) (   0.45,-133.57)  173.26                80
 05/27/2018   19:47:19   (  -0.14,-135.12) (   0.64,-138.73)  411.16                80
 05/29/2018   19:35:09   (  -0.14,-135.06) (  -0.01,-135.79)   82.52                80
 05/31/2018   19:20:18   (  -0.15,-134.99) (  -0.61,-132.83)  245.54                80
 06/01/2018   07:44:22   (   0.14,-134.94) (  -0.52,-138.02)  350.28                80
 06/03/2018   07:32:11   (   0.15,-134.86) (   0.08,-135.06)   23.09                80
 06/05/2018   07:17:21   (   0.16,-134.78) (   0.75,-132.11)  304.00                80
 06/05/2018   19:41:15   (  -0.14,-134.79) (   0.40,-137.26)  280.90                80
 06/07/2018   19:26:25   (  -0.15,-134.71) (  -0.21,-134.30)   45.56                80