Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2016 12 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/29/2016   07:37:01   (   0.04,-134.83) (  -0.25,-136.30)  166.50                80
 12/31/2016   07:22:08   (   0.04,-134.74) (   0.33,-133.33)  160.82                80
 12/31/2016   19:46:03   (  -0.03,-134.71) (   0.79,-138.48)  428.68                80
 01/02/2017   07:09:55   (   0.04,-134.65) (   0.93,-130.36)  487.69                80
 01/02/2017   19:33:50   (  -0.02,-134.62) (   0.20,-135.51)  101.96                80
 01/04/2017   19:18:58   (  -0.03,-134.53) (  -0.47,-132.56)  224.37                80
 01/05/2017   07:43:00   (   0.01,-134.51) (  -0.67,-137.74)  367.09                80
 01/07/2017   07:30:47   (   0.02,-134.41) (  -0.05,-134.78)   41.75                80
 01/09/2017   07:15:54   (   0.02,-134.30) (   0.52,-131.80)  282.89                80
 01/09/2017   19:39:49   (  -0.01,-134.25) (   0.54,-136.97)  307.74                80
 01/11/2017   19:24:55   (  -0.01,-134.14) (  -0.05,-133.99)   16.29                80