Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/19/2015   07:22:45   (   0.09,-135.35) (   0.50,-133.48)  213.35                80
 05/19/2015   19:44:00   (  -0.09,-135.33) (   0.64,-138.63)  375.42                80
 05/21/2015   19:31:50   (  -0.09,-135.30) (  -0.04,-135.68)   43.36                80
 05/23/2015   19:22:18   (  -0.10,-135.26) (  -0.61,-132.72)  288.70                80
 05/24/2015   07:43:43   (   0.09,-135.27) (  -0.44,-137.92)  300.89                80
 05/26/2015   07:28:51   (   0.10,-135.22) (   0.15,-134.95)   30.77                80
 05/28/2015   07:16:39   (   0.10,-135.18) (   0.77,-131.99)  362.15                80
 05/28/2015   19:37:54   (  -0.10,-135.15) (   0.35,-137.14)  227.29                80
 05/30/2015   19:28:22   (  -0.10,-135.09) (  -0.29,-134.18)  103.58                80
 05/31/2015   07:49:46   (   0.09,-135.10) (  -0.80,-139.38)  485.81                80