Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 6 24.  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) (   0.54,-133.35)  236.76                80
 06/25/2017   19:46:05   (  -0.08,-135.48) (   0.59,-138.50)  343.81                80
 06/27/2017   19:33:54   (  -0.09,-135.48) (  -0.06,-135.55)    7.35                80
 06/29/2017   19:19:03   (  -0.10,-135.49) (  -0.72,-132.59)  329.07                80
 06/30/2017   07:43:06   (   0.07,-135.44) (  -0.45,-137.77)  265.83                80
 07/02/2017   07:28:15   (   0.08,-135.44) (   0.21,-134.82)   70.21                80
 07/04/2017   07:16:04   (   0.09,-135.43) (   0.86,-131.87)  405.77                80
 07/04/2017   19:39:59   (  -0.06,-135.48) (   0.28,-137.02)  175.09                80
 07/06/2017   19:25:08   (  -0.07,-135.47) (  -0.37,-134.07)  159.56                80
 07/07/2017   07:49:10   (   0.04,-135.42) (  -0.79,-139.25)  435.74                80