Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 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)
 09/16/2018   07:23:21   (   0.30,-135.38) (   0.66,-133.64)  197.37                80
 09/16/2018   19:44:37   (  -0.32,-135.44) (   0.39,-138.81)  382.88                80
 09/18/2018   19:32:25   (  -0.31,-135.49) (  -0.25,-135.85)   41.24                80
 09/20/2018   19:22:52   (  -0.31,-135.53) (  -0.84,-132.89)  299.86                80
 09/21/2018   07:44:17   (   0.33,-135.50) (  -0.20,-138.09)  294.22                80
 09/23/2018   07:29:24   (   0.32,-135.53) (   0.39,-135.12)   46.18                80
 09/25/2018   07:17:12   (   0.32,-135.56) (   1.05,-132.17)  386.03                80
 09/25/2018   19:38:28   (  -0.33,-135.61) (   0.01,-137.34)  195.85                80
 09/27/2018   19:28:55   (  -0.33,-135.63) (  -0.59,-134.37)  143.42                80
 09/28/2018   07:50:19   (   0.34,-135.61) (  -0.50,-139.56)  449.60                80
 09/29/2018   19:16:43   (  -0.33,-135.65) (  -1.25,-131.42)  481.89                80