Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 14.  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)   46.22                80
 09/17/2017   19:22:07   (  -0.28,-135.32) (  -0.81,-132.73)  294.50                80
 09/18/2017   07:43:31   (   0.29,-135.29) (  -0.29,-137.92)  300.11                80
 09/20/2017   07:28:40   (   0.29,-135.32) (   0.39,-134.98)   40.40                80
 09/22/2017   07:16:28   (   0.28,-135.36) (   1.02,-132.02)  380.36                80
 09/22/2017   19:37:44   (  -0.30,-135.41) (   0.05,-137.18)  200.91                80
 09/24/2017   19:28:11   (  -0.29,-135.44) (  -0.53,-134.21)  138.83                80
 09/25/2017   07:49:34   (   0.30,-135.41) (  -0.56,-139.41)  454.36                80
 09/26/2017   19:15:59   (  -0.29,-135.46) (  -1.17,-131.26)  477.96                80
 09/27/2017   07:37:23   (   0.30,-135.43) (   0.08,-136.45)  115.54                80