Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2016 12 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/24/2016   07:16:06   (   0.07,-135.01) (   0.72,-131.87)  356.38                80
 12/24/2016   19:40:02   (  -0.05,-134.99) (   0.36,-137.03)  232.01                80
 12/26/2016   19:25:10   (  -0.06,-134.92) (  -0.26,-134.07)   96.77                80
 12/27/2016   07:49:13   (   0.04,-134.91) (  -0.90,-139.25)  494.48                80
 12/28/2016   19:12:58   (  -0.06,-134.84) (  -0.88,-131.11)  424.82                80
 12/29/2016   07:37:01   (   0.04,-134.83) (  -0.28,-136.29)  166.64                80
 12/31/2016   07:22:09   (   0.04,-134.75) (   0.34,-133.33)  160.60                80
 12/31/2016   19:46:03   (  -0.03,-134.72) (   0.80,-138.48)  428.82                80
 01/02/2017   07:09:57   (   0.04,-134.66) (   0.96,-130.37)  487.32                80
 01/02/2017   19:33:51   (  -0.03,-134.63) (   0.18,-135.52)  102.21                80
 01/04/2017   19:19:00   (  -0.03,-134.53) (  -0.44,-132.56)  223.83                80
 01/05/2017   07:43:03   (   0.01,-134.52) (  -0.65,-137.76)  367.77                80