Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 5 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/09/2018   07:35:25   (   0.14,-135.45) (  -0.08,-136.51)  119.65                80
 05/11/2018   07:25:55   (   0.14,-135.43) (   0.54,-133.55)  213.69                80
 05/11/2018   19:47:11   (  -0.14,-135.45) (   0.55,-138.71)  370.41                80
 05/13/2018   19:35:01   (  -0.14,-135.43) (  -0.06,-135.76)   37.90                80
 05/15/2018   19:20:11   (  -0.14,-135.39) (  -0.67,-132.81)  293.72                80
 05/16/2018   07:44:16   (   0.14,-135.36) (  -0.41,-138.01)  300.95                80
 05/18/2018   07:29:26   (   0.14,-135.31) (   0.21,-135.05)   29.46                80
 05/20/2018   07:17:16   (   0.15,-135.26) (   0.82,-132.10)  359.08                80
 05/20/2018   19:41:12   (  -0.14,-135.27) (   0.27,-137.26)  225.73                80
 05/22/2018   19:26:22   (  -0.15,-135.22) (  -0.34,-134.31)  103.49                80