Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 5 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/13/2018   19:35:00   (  -0.14,-135.43) (  -0.06,-135.76)   36.95                80
 05/15/2018   19:20:11   (  -0.14,-135.40) (  -0.68,-132.80)  295.09                80
 05/16/2018   07:44:15   (   0.14,-135.37) (  -0.40,-138.00)  299.28                80
 05/18/2018   07:29:25   (   0.14,-135.32) (   0.23,-135.05)   31.69                80
 05/20/2018   07:17:15   (   0.15,-135.28) (   0.86,-132.10)  361.64                80
 05/20/2018   19:41:10   (  -0.14,-135.29) (   0.29,-137.25)  223.21                80
 05/22/2018   19:26:20   (  -0.15,-135.24) (  -0.34,-134.30)  106.49                80
 05/23/2018   07:50:25   (   0.14,-135.20) (  -0.74,-139.50)  488.47                80
 05/24/2018   19:14:10   (  -0.16,-135.18) (  -0.97,-131.35)  436.03                80
 05/25/2018   07:38:14   (   0.15,-135.14) (  -0.17,-136.53)  158.93                80