Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 2 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 02/08/2018   19:21:41   (   0.03,-135.34) (  -0.56,-132.54)  318.30                80
 02/09/2018   07:43:06   (  -0.03,-135.35) (  -0.50,-137.74)  270.38                80
 02/11/2018   07:28:15   (  -0.02,-135.38) (   0.14,-134.78)   68.79                80
 02/13/2018   07:16:04   (  -0.01,-135.41) (   0.78,-131.83)  407.15                80
 02/13/2018   19:37:19   (   0.00,-135.40) (   0.35,-136.98)  179.58                80
 02/15/2018   19:27:48   (   0.00,-135.42) (  -0.30,-134.03)  158.54                80
 02/16/2018   07:49:12   (  -0.00,-135.44) (  -0.82,-139.22)  430.34                80
 02/17/2018   19:15:37   (   0.01,-135.44) (  -0.95,-131.08)  496.23                80
 02/18/2018   07:37:01   (  -0.00,-135.45) (  -0.17,-136.27)   92.79                80
 02/20/2018   07:22:09   (  -0.01,-135.46) (   0.42,-133.30)  244.17                80
 02/20/2018   19:43:25   (   0.01,-135.45) (   0.65,-138.46)  343.33                80