Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/28/2018   07:16:01   (  -0.01,-135.06) (   0.68,-131.80)  370.38                80
 01/28/2018   19:37:16   (   0.01,-135.06) (   0.45,-136.95)  216.27                80
 01/30/2018   19:27:46   (   0.02,-135.12) (  -0.24,-134.01)  126.61                80
 01/31/2018   07:49:10   (  -0.02,-135.16) (  -0.88,-139.20)  459.53                80
 02/01/2018   19:15:35   (   0.03,-135.18) (  -0.85,-131.05)  469.11                80
 02/02/2018   07:36:59   (  -0.03,-135.22) (  -0.27,-136.24)  117.31                80
 02/04/2018   07:22:09   (  -0.03,-135.27) (   0.38,-133.29)  224.60                80
 02/04/2018   19:43:25   (   0.03,-135.26) (   0.71,-138.45)  362.99                80
 02/06/2018   19:31:15   (   0.03,-135.32) (   0.07,-135.50)   21.65                80
 02/08/2018   19:21:45   (   0.02,-135.36) (  -0.55,-132.55)  318.99                80
 02/09/2018   07:43:10   (  -0.02,-135.40) (  -0.52,-137.75)  267.44                80