Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2017   19:22:08   (  -0.28,-135.32) (  -0.84,-132.74)  294.12                80
 09/18/2017   07:43:31   (   0.29,-135.28) (  -0.26,-137.93)  300.47                80
 09/20/2017   07:28:39   (   0.29,-135.32) (   0.37,-134.97)   39.78                80
 09/22/2017   07:16:27   (   0.28,-135.35) (   1.01,-132.02)  379.79                80
 09/22/2017   19:37:43   (  -0.30,-135.40) (   0.05,-137.18)  201.48                80
 09/24/2017   19:28:10   (  -0.29,-135.43) (  -0.54,-134.21)  138.18                80
 09/25/2017   07:49:34   (   0.30,-135.41) (  -0.55,-139.41)  455.03                80
 09/26/2017   19:15:58   (  -0.29,-135.45) (  -1.20,-131.26)  477.33                80
 09/27/2017   07:37:21   (   0.30,-135.43) (   0.05,-136.44)  116.26                80
 09/29/2017   07:22:29   (   0.29,-135.44) (   0.73,-133.49)  222.02                80
 09/29/2017   19:43:44   (  -0.30,-135.47) (   0.39,-138.64)  361.32                80