Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 9 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/18/2018   19:32:25   (  -0.31,-135.49) (  -0.23,-135.85)   41.41                80
 09/20/2018   19:22:53   (  -0.31,-135.53) (  -0.87,-132.89)  299.53                80
 09/21/2018   07:44:17   (   0.33,-135.50) (  -0.23,-138.08)  294.64                80
 09/23/2018   07:29:25   (   0.32,-135.53) (   0.41,-135.13)   45.59                80
 09/25/2018   07:17:13   (   0.32,-135.56) (   1.06,-132.18)  385.32                80
 09/25/2018   19:38:27   (  -0.33,-135.60) (   0.05,-137.33)  196.53                80
 09/27/2018   19:28:56   (  -0.33,-135.63) (  -0.60,-134.38)  142.56                80
 09/28/2018   07:50:19   (   0.34,-135.61) (  -0.50,-139.57)  450.56                80
 09/29/2018   19:16:44   (  -0.33,-135.65) (  -1.25,-131.42)  480.86                80
 09/30/2018   07:38:07   (   0.34,-135.62) (   0.15,-136.61)  112.70                80