Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 8 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/14/2017   19:31:34   (  -0.17,-135.01) (  -0.04,-135.63)   70.03                80
 08/16/2017   19:22:03   (  -0.16,-135.04) (  -0.64,-132.67)  269.11                80
 08/17/2017   07:40:48   (   0.19,-134.95) (  -0.42,-137.87)  331.53                80
 08/19/2017   07:28:37   (   0.18,-134.98) (   0.18,-134.91)    6.86                80
 08/21/2017   07:19:07   (   0.18,-134.99) (   0.84,-131.97)  344.45                80
 08/21/2017   19:37:43   (  -0.21,-135.09) (   0.24,-137.13)  232.53                80
 08/23/2017   19:28:13   (  -0.21,-135.11) (  -0.42,-134.18)  105.12                80
 08/24/2017   07:46:57   (   0.23,-135.03) (  -0.71,-139.37)  494.31                80
 08/25/2017   19:16:02   (  -0.20,-135.12) (  -1.01,-131.22)  442.59                80
 08/26/2017   07:34:47   (   0.23,-135.04) (  -0.05,-136.43)  157.13                80