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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/15/2017   19:31:39   (  -0.28,-135.28) (  -0.19,-135.69)   46.44                80
 09/17/2017   19:22:08   (  -0.28,-135.32) (  -0.85,-132.74)  294.10                80
 09/18/2017   07:43:32   (   0.29,-135.29) (  -0.26,-137.93)  300.58                80
 09/20/2017   07:28:40   (   0.29,-135.32) (   0.34,-134.97)   39.58                80
 09/22/2017   07:16:29   (   0.28,-135.36) (   1.00,-132.02)  379.30                80
 09/22/2017   19:37:45   (  -0.30,-135.41) (   0.08,-137.18)  202.00                80
 09/24/2017   19:28:14   (  -0.29,-135.44) (  -0.57,-134.24)  137.32                80
 09/25/2017   07:49:37   (   0.30,-135.41) (  -0.53,-139.43)  456.03                80
 09/26/2017   19:16:02   (  -0.29,-135.46) (  -1.17,-131.27)  476.02                80
 09/27/2017   07:37:26   (   0.30,-135.43) (   0.06,-136.46)  117.67                80