Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 6 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/25/2017   07:22:10   (   0.10,-135.43) (   0.51,-133.34)  236.70                80
 06/25/2017   19:46:05   (  -0.08,-135.48) (   0.56,-138.50)  343.87                80
 06/27/2017   19:33:53   (  -0.09,-135.48) (  -0.05,-135.54)    7.80                80
 06/29/2017   19:19:02   (  -0.10,-135.49) (  -0.72,-132.59)  329.19                80
 06/30/2017   07:43:05   (   0.07,-135.44) (  -0.44,-137.77)  265.65                80
 07/02/2017   07:28:14   (   0.08,-135.44) (   0.23,-134.82)   70.58                80
 07/04/2017   07:16:02   (   0.09,-135.43) (   0.86,-131.86)  406.29                80
 07/04/2017   19:39:57   (  -0.06,-135.48) (   0.28,-137.01)  174.52                80
 07/06/2017   19:25:05   (  -0.07,-135.47) (  -0.35,-134.05)  160.39                80
 07/07/2017   07:49:08   (   0.04,-135.42) (  -0.80,-139.23)  434.85                80