Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 6 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/26/2018   07:38:24   (   0.10,-135.03) (  -0.20,-136.57)  174.12                80
 06/28/2018   07:23:33   (   0.11,-135.10) (   0.44,-133.62)  168.78                80
 06/28/2018   19:47:28   (  -0.08,-135.13) (   0.70,-138.77)  413.49                80
 06/30/2018   19:35:17   (  -0.09,-135.19) (   0.06,-135.81)   71.25                80
 07/02/2018   19:20:26   (  -0.11,-135.25) (  -0.59,-132.86)  270.56                80
 07/03/2018   07:44:29   (   0.08,-135.24) (  -0.53,-138.05)  319.44                80
 07/05/2018   07:29:38   (   0.09,-135.29) (   0.13,-135.10)   21.84                80
 07/07/2018   07:17:28   (   0.10,-135.34) (   0.78,-132.15)  362.63                80
 07/07/2018   19:41:22   (  -0.07,-135.36) (   0.35,-137.30)  220.18                80
 07/09/2018   19:26:31   (  -0.07,-135.40) (  -0.31,-134.35)  119.55                80