Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2015 12 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/24/2015   19:28:00   (  -0.06,-134.90) (  -0.21,-134.08)   92.46                80
 12/26/2015   19:15:50   (  -0.06,-134.82) (  -0.84,-131.13)  418.96                80
 12/27/2015   07:37:14   (   0.04,-134.78) (  -0.29,-136.32)  175.69                80
 12/29/2015   07:22:23   (   0.04,-134.69) (   0.30,-133.36)  150.53                80
 12/29/2015   19:43:39   (  -0.03,-134.68) (   0.78,-138.52)  436.40                80
 12/31/2015   07:10:12   (   0.04,-134.60) (   0.91,-130.40)  476.57                80
 12/31/2015   19:31:28   (  -0.03,-134.59) (   0.17,-135.56)  110.32                80
 01/02/2016   19:21:57   (  -0.03,-134.50) (  -0.45,-132.61)  215.39                80
 01/03/2016   07:43:20   (   0.01,-134.46) (  -0.72,-137.78)  378.55                80
 01/05/2016   07:31:09   (   0.02,-134.36) (  -0.08,-134.83)   53.64                80