Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 12 19.  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   07:28:24   (   0.07,-135.05) (   0.10,-134.83)   24.72                80
 12/22/2015   07:16:17   (   0.07,-134.98) (   0.75,-131.90)  350.99                80
 12/22/2015   19:37:33   (  -0.06,-134.98) (   0.41,-137.05)  235.29                80
 12/24/2015   19:28:09   (  -0.06,-134.91) (  -0.24,-134.13)   89.11                80
 12/26/2015   19:16:07   (  -0.06,-134.82) (  -0.86,-131.21)  412.05                80
 12/27/2015   07:37:33   (   0.04,-134.78) (  -0.30,-136.40)  183.60                80
 12/29/2015   07:22:54   (   0.04,-134.70) (   0.32,-133.49)  137.52                80
 12/29/2015   19:44:13   (  -0.03,-134.69) (   0.79,-138.66)  451.08                80
 12/31/2015   07:10:57   (   0.04,-134.61) (   0.92,-130.59)  457.29                80
 12/31/2015   19:32:16   (  -0.03,-134.60) (   0.22,-135.76)  131.57                80