Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 6 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/27/2017   19:33:53   (  -0.09,-135.48) (  -0.05,-135.54)    7.64                80
 06/29/2017   19:19:02   (  -0.10,-135.48) (  -0.71,-132.59)  328.84                80
 06/30/2017   07:43:06   (   0.07,-135.43) (  -0.40,-137.78)  266.04                80
 07/02/2017   07:28:14   (   0.08,-135.43) (   0.21,-134.82)   69.72                80
 07/04/2017   07:16:03   (   0.08,-135.42) (   0.87,-131.87)  405.01                80
 07/04/2017   19:39:58   (  -0.06,-135.46) (   0.26,-137.01)  176.02                80
 07/06/2017   19:25:06   (  -0.07,-135.45) (  -0.34,-134.05)  158.40                80
 07/07/2017   07:49:10   (   0.04,-135.40) (  -0.76,-139.24)  436.88                80
 07/08/2017   19:12:55   (  -0.07,-135.43) (  -1.00,-131.10)  492.11                80
 07/09/2017   07:36:58   (   0.05,-135.37) (  -0.16,-136.28)  103.30                80
 07/11/2017   07:22:07   (   0.06,-135.35) (   0.51,-133.33)  229.63                80