Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 4 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/11/2018   19:34:32   (  -0.08,-135.17) (  -0.01,-135.64)   52.66                80
 04/13/2018   19:22:23   (  -0.08,-135.22) (  -0.64,-132.69)  288.63                80
 04/14/2018   07:41:07   (   0.08,-135.24) (  -0.45,-137.89)  300.49                80
 04/16/2018   07:31:39   (   0.08,-135.29) (   0.17,-134.94)   39.94                80
 04/18/2018   07:19:30   (   0.09,-135.33) (   0.80,-131.99)  379.35                80
 04/18/2018   19:40:45   (  -0.09,-135.34) (   0.32,-137.15)  206.52                80
 04/20/2018   19:25:57   (  -0.10,-135.36) (  -0.36,-134.21)  131.63                80
 04/21/2018   07:47:22   (   0.10,-135.37) (  -0.73,-139.41)  458.46                80
 04/22/2018   19:13:48   (  -0.10,-135.39) (  -0.97,-131.26)  468.99                80
 04/23/2018   07:35:13   (   0.11,-135.39) (  -0.11,-136.46)  121.15                80