Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 7 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)
 07/22/2015   07:23:15   (  -0.01,-135.14) (   0.34,-133.55)  180.36                80
 07/22/2015   19:47:09   (   0.04,-135.12) (   0.78,-138.70)  406.93                80
 07/24/2015   19:34:57   (   0.03,-135.12) (   0.18,-135.74)   70.75                80
 07/26/2015   19:20:06   (   0.03,-135.11) (  -0.48,-132.79)  264.70                80
 07/27/2015   07:44:10   (  -0.05,-135.13) (  -0.63,-137.98)  323.68                80
 07/29/2015   07:29:18   (  -0.05,-135.11) (  -0.02,-135.02)   10.91                80
 07/31/2015   07:17:06   (  -0.04,-135.09) (   0.60,-132.06)  344.77                80
 07/31/2015   19:41:01   (   0.07,-135.07) (   0.51,-137.21)  242.94                80
 08/02/2015   19:26:09   (   0.06,-135.04) (  -0.12,-134.25)   90.17                80
 08/03/2015   07:50:12   (  -0.09,-135.04) (  -1.05,-139.43)  499.09                80