Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 5 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/21/2015   19:34:30   (  -0.09,-135.31) (  -0.00,-135.68)   41.67                80
 05/23/2015   19:21:58   (  -0.10,-135.28) (  -0.63,-132.72)  290.44                59
 05/24/2015   07:43:43   (   0.09,-135.29) (  -0.49,-137.91)  298.28                80
 05/26/2015   07:28:52   (   0.10,-135.25) (   0.14,-134.96)   33.58                80
 05/28/2015   07:16:41   (   0.10,-135.21) (   0.80,-132.00)  365.01                80
 05/28/2015   19:40:36   (  -0.09,-135.17) (   0.33,-137.15)  225.12                80
 05/30/2015   19:25:44   (  -0.10,-135.12) (  -0.28,-134.19)  105.76                80
 05/31/2015   07:49:47   (   0.09,-135.13) (  -0.83,-139.38)  483.11                80
 06/01/2015   19:13:32   (  -0.10,-135.07) (  -0.91,-131.23)  435.90                80
 06/02/2015   07:37:35   (   0.09,-135.07) (  -0.20,-136.42)  153.15                80