Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2015   07:16:17   (   0.07,-134.98) (   0.73,-131.89)  350.30                80
 12/22/2015   19:37:34   (  -0.06,-134.98) (   0.38,-137.06)  236.06                80
 12/24/2015   19:28:09   (  -0.06,-134.90) (  -0.21,-134.12)   88.19                80
 12/26/2015   19:16:07   (  -0.06,-134.82) (  -0.83,-131.20)  410.99                80
 12/27/2015   07:37:33   (   0.04,-134.78) (  -0.32,-136.40)  184.59                80
 12/29/2015   07:22:54   (   0.04,-134.69) (   0.31,-133.49)  136.46                80
 12/29/2015   19:44:13   (  -0.03,-134.68) (   0.81,-138.66)  452.23                80
 12/31/2015   07:10:57   (   0.04,-134.60) (   0.92,-130.59)  456.20                80
 12/31/2015   19:32:16   (  -0.03,-134.59) (   0.23,-135.76)  132.79                80
 01/02/2016   19:23:02   (  -0.03,-134.50) (  -0.39,-132.87)  185.10                80
 01/03/2016   07:44:30   (   0.01,-134.46) (  -0.77,-138.07)  410.73                80