Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 5 20.  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   19:31:50   (  -0.09,-135.32) (  -0.03,-135.68)   40.99                80
 05/23/2015   19:19:39   (  -0.10,-135.29) (  -0.66,-132.73)  291.38                80
 05/24/2015   07:43:43   (   0.09,-135.30) (  -0.46,-137.92)  297.62                80
 05/26/2015   07:28:52   (   0.10,-135.26) (   0.19,-134.96)   34.49                80
 05/28/2015   07:16:40   (   0.10,-135.22) (   0.79,-132.00)  366.11                80
 05/28/2015   19:40:35   (  -0.09,-135.19) (   0.34,-137.15)  223.58                80
 05/30/2015   19:25:43   (  -0.10,-135.14) (  -0.29,-134.19)  107.55                80
 05/31/2015   07:49:47   (   0.09,-135.14) (  -0.82,-139.38)  481.63                80
 06/01/2015   19:13:31   (  -0.10,-135.08) (  -0.92,-131.23)  437.97                80
 06/02/2015   07:37:35   (   0.09,-135.09) (  -0.18,-136.42)  151.41                80