Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 6 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/22/2017   19:12:58   (  -0.11,-135.46) (  -1.01,-131.11)  494.32                80
 06/23/2017   07:37:01   (   0.09,-135.42) (  -0.09,-136.30)  100.30                80
 06/25/2017   07:22:09   (   0.10,-135.43) (   0.52,-133.34)  236.78                80
 06/25/2017   19:46:05   (  -0.08,-135.48) (   0.55,-138.51)  343.68                80
 06/27/2017   19:33:53   (  -0.09,-135.48) (  -0.07,-135.55)    6.94                80
 06/29/2017   19:19:01   (  -0.10,-135.49) (  -0.70,-132.59)  329.65                80
 06/30/2017   07:43:04   (   0.07,-135.44) (  -0.45,-137.77)  265.25                80
 07/02/2017   07:28:12   (   0.08,-135.44) (   0.19,-134.81)   71.19                80
 07/04/2017   07:16:00   (   0.09,-135.44) (   0.84,-131.85)  407.12                80
 07/04/2017   19:39:55   (  -0.06,-135.48) (   0.29,-137.00)  173.57                80