Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/11/2017   07:22:14   (   0.05,-135.30) (   0.48,-133.35)  222.16                80
 07/11/2017   19:46:08   (  -0.03,-135.35) (   0.67,-138.50)  358.35                80
 07/13/2017   19:34:00   (  -0.04,-135.31) (   0.02,-135.55)   27.74                80
 07/15/2017   19:19:11   (  -0.05,-135.26) (  -0.62,-132.61)  302.13                80
 07/16/2017   07:43:14   (   0.01,-135.19) (  -0.54,-137.79)  295.61                80
 07/18/2017   07:28:25   (   0.02,-135.14) (   0.09,-134.84)   33.19                80
 07/20/2017   07:16:16   (   0.03,-135.07) (   0.70,-131.90)  361.10                80
 07/20/2017   19:40:12   (   0.01,-135.11) (   0.41,-137.05)  220.55                80
 07/22/2017   19:25:23   (  -0.00,-135.04) (  -0.18,-134.10)  106.37                80
 07/23/2017   07:49:27   (  -0.03,-134.97) (  -0.98,-139.28)  491.64                80