Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2013 12 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/14/2013   07:28:11   (   0.10,-135.28) (   0.18,-134.92)   40.71                80
 12/16/2013   07:16:04   (   0.11,-135.23) (   0.81,-131.98)  370.04                80
 12/16/2013   19:40:00   (  -0.08,-135.18) (   0.33,-137.13)  221.86                80
 12/18/2013   19:25:15   (  -0.09,-135.13) (  -0.29,-134.20)  105.86                80
 12/19/2013   07:49:20   (   0.06,-135.16) (  -0.83,-139.40)  482.06                80
 12/20/2013   19:13:11   (  -0.09,-135.08) (  -0.87,-131.27)  432.40                80
 12/21/2013   07:37:17   (   0.06,-135.10) (  -0.21,-136.48)  155.88                80
 12/23/2013   07:22:36   (   0.07,-135.04) (   0.35,-133.55)  169.05                80
 12/23/2013   19:46:33   (  -0.04,-134.99) (   0.77,-138.71)  424.24                80
 12/25/2013   07:10:37   (   0.07,-134.98) (   1.00,-130.65)  492.54                80
 12/25/2013   19:34:34   (  -0.04,-134.92) (   0.15,-135.81)  101.10                80