Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 8 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/12/2017   07:25:08   (   0.14,-134.86) (   0.47,-133.42)  164.98                80
 08/12/2017   19:43:44   (  -0.17,-134.97) (   0.61,-138.58)  410.72                80
 08/14/2017   19:31:33   (  -0.17,-135.01) (  -0.02,-135.62)   70.70                80
 08/16/2017   19:22:02   (  -0.16,-135.03) (  -0.65,-132.67)  268.44                80
 08/17/2017   07:40:46   (   0.19,-134.95) (  -0.45,-137.86)  331.73                80
 08/19/2017   07:31:15   (   0.19,-134.97) (   0.20,-134.91)    6.53                80
 08/21/2017   07:19:03   (   0.18,-134.98) (   0.80,-131.95)  344.49                80
 08/21/2017   19:37:40   (  -0.21,-135.07) (   0.22,-137.12)  232.93                80
 08/23/2017   19:28:08   (  -0.21,-135.09) (  -0.39,-134.16)  104.97                80
 08/24/2017   07:46:52   (   0.23,-135.01) (  -0.71,-139.35)  493.86                80