Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 12 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2015   07:28:26   (   0.07,-135.05) (   0.15,-134.85)   24.54                80
 12/22/2015   07:16:20   (   0.07,-134.98) (   0.74,-131.91)  349.77                80
 12/22/2015   19:37:37   (  -0.06,-134.98) (   0.40,-137.06)  236.82                80
 12/24/2015   19:28:16   (  -0.06,-134.91) (  -0.24,-134.15)   86.15                80
 12/26/2015   19:16:17   (  -0.06,-134.82) (  -0.80,-131.24)  407.20                80
 12/27/2015   07:37:44   (   0.04,-134.78) (  -0.32,-136.44)  188.97                80
 12/29/2015   07:23:10   (   0.04,-134.70) (   0.29,-133.56)  129.70                80
 12/29/2015   19:44:30   (  -0.03,-134.69) (   0.86,-138.73)  459.64                80
 12/31/2015   07:11:20   (   0.04,-134.61) (   0.87,-130.68)  446.58                80
 12/31/2015   19:32:40   (  -0.03,-134.60) (   0.27,-135.85)  143.19                80
 01/02/2016   19:23:34   (  -0.03,-134.51) (  -0.36,-133.01)  171.30                80